Docs: Unify file extension to get tracked by lfs. (#1217)

f98a4c1d · Xiangquan Xiao · Jiangtao Hu · 5e775760 · f98a4c1d · f98a4c1d
26 changed file
--- a/docs/quickstart/apollo_1_5_hardware_system_installation_guide.md
+++ b/docs/quickstart/apollo_1_5_hardware_system_installation_guide.md
@@ -294,7 +294,7 @@ Follow these steps:
  a. Locate and unscrew the eight screws (shown in the brown squares or	pointed by brown arrows) on the side of computer:
  ![Positions_of_Screws](images/IPC-6108GC-Screw-Positions_labeled.png)b. Remove the cover from the IPC. 3 PCI slots (one occupied by the	graphic card) locate on the base:

-  ![removing the cover](images/Removing_the_cover.JPG)
+  ![removing the cover](images/Removing_the_cover.jpg)

  ![Before installing the CAN card](images/Before_installing_the_can_card.png)

@@ -342,7 +342,7 @@ Follow these steps:

 c. Connect the power: 

-![IPC-6108GC-PowerCable.JPG](images/IPC-6108GC-PowerCable.JPG)
+![IPC-6108GC-PowerCable.jpg](images/IPC-6108GC-PowerCable.jpg)


 ### Installing the Software for the IPC
@@ -623,13 +623,13 @@ Each HDL-64E S3 LiDAR includes a cablebundle to connect the LiDAR to power suppl

   Connect the power and signal cable to the matching ports on the LiDAR

-   ![HDL64_Cabling](images/HDL64_Cabling.JPG)
+   ![HDL64_Cabling](images/HDL64_Cabling.jpg)

 2. Connection to Power Source

   The two AWG 16 wires are used to power HDL-64E S3 Lidar. It requires about 3A at 12V. To make connection to the power source, make full contact with the wires and tighten the screws. 

-   ![HDL64_Power_Cable](images/HDL64_PowerCable.JPG)
+   ![HDL64_Power_Cable](images/HDL64_PowerCable.jpg)

 3. Conection to IPC

@@ -718,7 +718,7 @@ Follow these steps:

 2.   Place the onboard computer system, the 6108GC, inside the trunk (recommended).

-     For example, Apollo 1.5 uses 4x4 self-tapping screws to bolt the 6108GC to the carpeted floor of the trunk. ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.JPG)
+     For example, Apollo 1.5 uses 4x4 self-tapping screws to bolt the 6108GC to the carpeted floor of the trunk. ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.jpg)

 3. Mount the IPC so that its front and back sides(where all ports are located) face the right side (passenger) or the left side(driver) of the trunk.

@@ -762,7 +762,7 @@ d. Connect:

 - (optional) the monitor:

-![IPC-power-842x636](images/cable_connected_incar.JPG)
+![IPC-power-842x636](images/cable_connected_incar.jpg)




--- a/docs/quickstart/apollo_1_5_hardware_system_installation_guide_cn.md
+++ b/docs/quickstart/apollo_1_5_hardware_system_installation_guide_cn.md
@@ -200,7 +200,7 @@ a. 找到并拧下计算机侧面的八个螺丝（棕色方块所示或棕色

 b. 从IPC上拆下盖子。基座有3个PCI插槽（由显卡占据一个）：

-<img src="https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Removing_the_cover.JPG" width="99%">
+<img src="https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Removing_the_cover.jpg" width="99%">

 ![Before installing the CAN card](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Before_installing_the_can_card.png)

@@ -255,7 +255,7 @@ e. 安装IPC盖子：

 c. 连接电源: 

-![IPC-6108GC-PowerCable.JPG](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/IPC-6108GC-PowerCable.JPG)
+![IPC-6108GC-PowerCable.jpg](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/IPC-6108GC-PowerCable.jpg)

 #### 为IPC安装软件
 这部分主要描述以下的安装步骤：
@@ -503,13 +503,13 @@ LiDAR所需的实际高度取决于车辆的设计和LiDAR相对于车辆的安

  将电源和信号电缆连接到LiDAR上的匹配端口

-   ![HDL64_Cabling](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_Cabling.JPG)
+   ![HDL64_Cabling](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_Cabling.jpg)

 2. 连接到电源

   两根AWG 16线为HDL-64E S3提供所需电力。 所需电压/电流：12V/3A。 要连接电源，请与电线完全接触并拧紧螺丝。

-   ![HDL64_Power_Cable](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_PowerCable.JPG)
+   ![HDL64_Power_Cable](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_PowerCable.jpg)

 3. 连接到IPC

@@ -588,7 +588,7 @@ LiDAR所需的实际高度取决于车辆的设计和LiDAR相对于车辆的安

 2.   将板载计算机系统6108GC放在主干箱内（推荐）。

-      例如，阿波罗1.5使用4x4螺钉将6108GC螺栓固定在后备箱的箱板上。 ![IPC-bolt_down-936x720](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Mount_ipc_on_carpet.JPG)
+      例如，阿波罗1.5使用4x4螺钉将6108GC螺栓固定在后备箱的箱板上。 ![IPC-bolt_down-936x720](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Mount_ipc_on_carpet.jpg)

 3. 安装IPC，使其前后两侧（所有端口位于）面对右侧（乘客）或左侧（驱动器）的主干。
 这种定位使得连接所有电缆更容易。
@@ -618,7 +618,7 @@ d. 连接:
 - 全球定位系统接收机
 -（可选）监视器：

-![IPC-power-842x636](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/cable_connected_incar.JPG)
+![IPC-power-842x636](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/cable_connected_incar.jpg)


 #### 杠杆臂测量

--- a/docs/quickstart/apollo_2_0_hardware_system_installation_guide_v1.md
+++ b/docs/quickstart/apollo_2_0_hardware_system_installation_guide_v1.md
@@ -356,7 +356,7 @@ Follow these steps:
  a. Locate and unscrew the eight screws (shown in the brown squares or	pointed by brown arrows) on the side of computer:
  ![Positions_of_Screws](images/IPC-6108GC-Screw-Positions_labeled.png)b. Remove the cover from the IPC. 3 PCI slots (one occupied by the	graphic card) locate on the base:

-  ![removing the cover](images/Removing_the_cover.JPG)
+  ![removing the cover](images/Removing_the_cover.jpg)

  ![Before installing the CAN card](images/Before_installing_the_can_card.png)

@@ -404,7 +404,7 @@ Follow these steps:

 c. Connect the power: 

-![IPC-6108GC-PowerCable.JPG](images/IPC-6108GC-PowerCable.JPG)
+![IPC-6108GC-PowerCable.jpg](images/IPC-6108GC-PowerCable.jpg)


 ### Installing the Software for the IPC
@@ -694,13 +694,13 @@ Each HDL-64E S3 LiDAR includes a cable bundle to connect the LiDAR to the power

   Connect the power and signal cable to the matching ports on the LiDAR

-   ![HDL64_Cabling](images/HDL64_Cabling.JPG)    
+   ![HDL64_Cabling](images/HDL64_Cabling.jpg) 

 2. Connection to Power Source

   The two AWG 16 wires are used to power HDL-64E S3 LiDAR. It requires about 3A at 12V. To connect the power source, make full contact with the wires and tighten the screws. 

-   ![HDL64_Power_Cable](images/HDL64_PowerCable.JPG)
+   ![HDL64_Power_Cable](images/HDL64_PowerCable.jpg)

 3. Conection to IPC

@@ -873,7 +873,7 @@ Follow these steps:

 2.   Place the onboard computer system, the 6108GC, inside the trunk (recommended).

-     For example, Apollo 2.0 uses 4x4 self-tapping screws to bolt the 6108GC to the carpeted floor of the trunk. ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.JPG)
+     For example, Apollo 2.0 uses 4x4 self-tapping screws to bolt the 6108GC to the carpeted floor of the trunk. ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.jpg)

 3. Mount the IPC so that its front and back sides(where all ports are located) face the right side (passenger) or the left side(driver) of the trunk.

@@ -917,7 +917,7 @@ d. Connect:

 - (optional) the monitor:

-![IPC-power-842x636](images/cable_connected_incar.JPG)
+![IPC-power-842x636](images/cable_connected_incar.jpg)




--- a/docs/quickstart/apollo_2_0_hardware_system_installation_guide_v1_cn.md
+++ b/docs/quickstart/apollo_2_0_hardware_system_installation_guide_v1_cn.md
@@ -355,7 +355,7 @@ a. 找到并拧下计算机侧面的八个螺丝（棕色方块所示或棕色

 b. 从IPC上拆下盖子。基座有3个PCI插槽（由显卡占据一个）：

-  ![removing the cover](images/Removing_the_cover.JPG)
+  ![removing the cover](images/Removing_the_cover.jpg)

 ![Before installing the CAN card](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Before_installing_the_can_card.png)

@@ -403,7 +403,7 @@ e. 安装IPC盖子：

 c. 连接电源：

-![IPC-6108GC-PowerCable.JPG](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/IPC-6108GC-PowerCable.JPG)
+![IPC-6108GC-PowerCable.jpg](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/IPC-6108GC-PowerCable.jpg)


 ### 为IPC安装软件
@@ -703,13 +703,13 @@ LiDAR所需的实际高度取决于车辆的设计和LiDAR相对于车辆的安

  将电源和信号电缆连接到LiDAR上的匹配端口

-   ![HDL64_Cabling](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_Cabling.JPG)
+   ![HDL64_Cabling](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_Cabling.jpg)

 2. 连接到电源

   两根AWG 16线为HDL-64E S3提供所需电力。 所需电压/电流：12V/3A。 要连接电源，请与电线完全接触并拧紧螺丝。

-   ![HDL64_Power_Cable](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_PowerCable.JPG)
+   ![HDL64_Power_Cable](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_PowerCable.jpg)

 3. 连接到IPC

@@ -877,7 +877,7 @@ Apollo参考设计建议使用两个不同焦距的相机，一个6毫米，另

 2.   将板载计算机系统6108GC放在后备箱内（推荐）。

-      例如，Apollo 2.0使用4x4螺钉将6108GC螺栓固定在后备箱的箱板上。 ![IPC-bolt_down-936x720](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Mount_ipc_on_carpet.JPG)
+      例如，Apollo 2.0使用4x4螺钉将6108GC螺栓固定在后备箱的箱板上。 ![IPC-bolt_down-936x720](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Mount_ipc_on_carpet.jpg)

 3. 安装IPC，使其前后两侧（所有端口位于）面对右侧（乘客）或左侧（驱动器）的后备箱中。
 这种定位使得连接所有电缆更容易。
@@ -907,7 +907,7 @@ d. 连接:
 - IPC的GPS接收器
 - 监视器（可选）：

-![IPC-power-842x636](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/cable_connected_incar.JPG)
+![IPC-power-842x636](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/cable_connected_incar.jpg)


 #### 杠杆臂测量

--- a/docs/quickstart/apollo_2_5_hardware_system_installation_guide_v1.md
+++ b/docs/quickstart/apollo_2_5_hardware_system_installation_guide_v1.md
@@ -356,7 +356,7 @@ Follow these steps:
  a. Locate and unscrew the eight screws (shown in the brown squares or	pointed by brown arrows) on the side of computer:
  ![Positions_of_Screws](images/IPC-6108GC-Screw-Positions_labeled.png)b. Remove the cover from the IPC. 3 PCI slots (one occupied by the	graphic card) locate on the base:

-  ![removing the cover](images/Removing_the_cover.JPG)
+  ![removing the cover](images/Removing_the_cover.jpg)

  ![Before installing the CAN card](images/Before_installing_the_can_card.png)

@@ -403,7 +403,7 @@ Follow these steps:

 c. Connect the power: 

-![IPC-6108GC-PowerCable.JPG](images/IPC-6108GC-PowerCable.JPG)
+![IPC-6108GC-PowerCable.jpg](images/IPC-6108GC-PowerCable.jpg)


 ### Installing the Software for the IPC
@@ -553,7 +553,7 @@ The following two diagrams indicate the locations of where the three major compo



-![major_component_side_view](images/Car_Sideview_2_5.PNG)
+![major_component_side_view](images/Car_Sideview_2_5.png)



@@ -689,13 +689,13 @@ Each HDL-64E S3 LiDAR includes a cable bundle to connect the LiDAR to the power

   Connect the power and signal cable to the matching ports on the LiDAR

-   ![HDL64_Cabling](images/HDL64_Cabling.JPG)
+   ![HDL64_Cabling](images/HDL64_Cabling.jpg)

 2. Connection to Power Source

   The two AWG 16 wires are used to power HDL-64E S3 LiDAR. It requires about 3A at 12V. To connect the power source, make full contact with the wires and tighten the screws. 

-   ![HDL64_Power_Cable](images/HDL64_PowerCable.JPG)
+   ![HDL64_Power_Cable](images/HDL64_PowerCable.jpg)

 3. Conection to IPC

@@ -825,7 +825,7 @@ Follow these steps:

 2.   Place the onboard computer system, the 6108GC, inside the trunk (recommended).

-     For example, Apollo 2.5 uses 4x4 self-tapping screws to bolt the 6108GC to the carpeted floor of the trunk. ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.JPG)
+     For example, Apollo 2.5 uses 4x4 self-tapping screws to bolt the 6108GC to the carpeted floor of the trunk. ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.jpg)

 3. Mount the IPC so that its front and back sides(where all ports are located) face the right side (passenger) or the left side(driver) of the trunk.

@@ -869,7 +869,7 @@ d. Connect:

 - (optional) the monitor:

-![IPC-power-842x636](images/cable_connected_incar.JPG)
+![IPC-power-842x636](images/cable_connected_incar.jpg)




--- a/docs/quickstart/apollo_2_5_hardware_system_installation_guide_v1_cn.md
+++ b/docs/quickstart/apollo_2_5_hardware_system_installation_guide_v1_cn.md
@@ -355,7 +355,7 @@ a. 找到并拧下计算机侧面的八个螺丝（棕色方块所示或棕色

 b. 从IPC上拆下盖子。基座有3个PCI插槽（由显卡占据一个）：

-  ![removing the cover](images/Removing_the_cover.JPG)
+  ![removing the cover](images/Removing_the_cover.jpg)

 ![Before installing the CAN card](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/Before_installing_the_can_card.png)

@@ -403,7 +403,7 @@ e. 安装IPC盖子：

 c. 连接电源：

-![IPC-6108GC-PowerCable.JPG](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/IPC-6108GC-PowerCable.JPG)
+![IPC-6108GC-PowerCable.jpg](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/IPC-6108GC-PowerCable.jpg)


 ### 为IPC安装软件
@@ -701,13 +701,13 @@ b. 使用从ESD Electronics获取到得的ESD CAN软件包的一部分的测试

  将电源和信号电缆连接到LiDAR上的匹配端口

-   ![HDL64_Cabling](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_Cabling.JPG)
+   ![HDL64_Cabling](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_Cabling.jpg)

 2. 连接到电源

   两根AWG 16线为HDL-64E S3提供所需电力。 所需电压/电流：12V/3A。 要连接电源，请与电线完全接触并拧紧螺丝。

-   ![HDL64_Power_Cable](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_PowerCable.JPG)
+   ![HDL64_Power_Cable](https://raw.githubusercontent.com/ApolloAuto/apollo/master/docs/quickstart/images/HDL64_PowerCable.jpg)

 3. 连接到IPC

@@ -831,7 +831,7 @@ Apollo参考设计建议使用三个不同焦距的摄像头：两个6毫米镜

 2.   将板载计算机系统6108GC放在后备箱内（推荐）。

-     例如，Apollo 2.5使用4x4螺钉将6108GC螺栓固定在后备箱的箱板上。 ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.JPG)
+     例如，Apollo 2.5使用4x4螺钉将6108GC螺栓固定在后备箱的箱板上。 ![IPC-bolt_down-936x720](images/Mount_ipc_on_carpet.jpg)

 3. 安装IPC，使其前后两侧（所有端口位于）面对右侧（乘客）或左侧（驱动器）的主干。
 这种定位使得连接所有电缆更容易。
@@ -861,7 +861,7 @@ d. 连接:
 - IPC的GPS接收器
 - 监视器（可选）：

-![IPC-power-842x636](images/cable_connected_incar.JPG)
+![IPC-power-842x636](images/cable_connected_incar.jpg)


 #### 杠杆臂测量

--- a/docs/quickstart/images/Car_Sideview_2_5.PNG
+++ b/docs/quickstart/images/Car_Sideview_2_5.PNG
--- a/docs/quickstart/images/HDL64_Cabling.JPG
+++ b/docs/quickstart/images/HDL64_Cabling.JPG
--- a/docs/quickstart/images/HDL64_PowerCable.JPG
+++ b/docs/quickstart/images/HDL64_PowerCable.JPG
--- a/docs/quickstart/images/IPC-6108GC-PowerCable.JPG
+++ b/docs/quickstart/images/IPC-6108GC-PowerCable.JPG
--- a/docs/quickstart/images/Mount_ipc_on_carpet.JPG
+++ b/docs/quickstart/images/Mount_ipc_on_carpet.JPG
--- a/docs/quickstart/images/Removing_the_cover.JPG
+++ b/docs/quickstart/images/Removing_the_cover.JPG
--- a/docs/quickstart/images/cable_connected_incar.JPG
+++ b/docs/quickstart/images/cable_connected_incar.JPG
--- a/docs/specs/IPC/Nuvo-6108GC_Installation_Guide.md
+++ b/docs/specs/IPC/Nuvo-6108GC_Installation_Guide.md
@@ -33,7 +33,7 @@ Follow these steps:
  
    b. Remove the cover from the IPC. 
    
-  ![removing the cover](images/Removing_the_cover.JPG)
+  ![removing the cover](images/Removing_the_cover.jpg)
    
    You will find 3 PCI slots (one occupied by the	graphic card) located on the base:

@@ -94,7 +94,7 @@ Follow these steps:

 4.  Connect the power: 

-![IPC-6108GC-PowerCable.JPG](images/IPC-6108GC-PowerCable.JPG)
+![IPC-6108GC-PowerCable.jpg](images/IPC-6108GC-PowerCable.jpg)




--- a/docs/specs/IPC/Nuvo-6108GC_Installation_Guide_cn.md
+++ b/docs/specs/IPC/Nuvo-6108GC_Installation_Guide_cn.md
@@ -32,7 +32,7 @@ Nuvo-6018GC is world's first industrial-grade GPU computer supporting high-end g

   b. 移除机器盖板

-   ![removing the cover](images/Removing_the_cover.JPG)
+   ![removing the cover](images/Removing_the_cover.jpg)

   在机箱底部将能看到固定着的3个PCI插槽（其中一个已经被显卡占据）

@@ -90,7 +90,7 @@ Nuvo-6018GC is world's first industrial-grade GPU computer supporting high-end g

 4.  连接电源：

-![IPC-6108GC-PowerCable.JPG](images/IPC-6108GC-PowerCable.JPG)
+![IPC-6108GC-PowerCable.jpg](images/IPC-6108GC-PowerCable.jpg)

 ### 参考资料


--- a/docs/specs/IPC/images/IPC-6108GC-PowerCable.JPG
+++ b/docs/specs/IPC/images/IPC-6108GC-PowerCable.JPG
--- a/docs/specs/IPC/images/Mount_ipc_on_carpet.JPG
+++ b/docs/specs/IPC/images/Mount_ipc_on_carpet.JPG
--- a/docs/specs/IPC/images/Removing_the_cover.JPG
+++ b/docs/specs/IPC/images/Removing_the_cover.JPG
--- a/docs/specs/Lidar/HDL64E_S3_Installation_Guide.md
+++ b/docs/specs/Lidar/HDL64E_S3_Installation_Guide.md
@@ -36,13 +36,13 @@ Each HDL-64E S3 LiDAR includes a cable bundle to connect the LiDAR to the power

   Connect the power and signal cable to the matching ports on the LiDAR

-   ![HDL64_Cabling](images/HDL64_Cabling.JPG)
+   ![HDL64_Cabling](images/HDL64_Cabling.jpg)

 * **Connecting the Power Source**

   Two AWG 16 wires are used to power the HDL-64E S3 LiDAR. It requires about 3A at 12V. To connect the power source, make full contact with the wires and tighten the screws. 

-   ![HDL64_Power_Cable](images/HDL64_PowerCable.JPG)
+   ![HDL64_Power_Cable](images/HDL64_PowerCable.jpg)

 * **Connecting the IPC**


--- a/docs/specs/Lidar/HDL64E_S3_Installation_Guide_cn.md
+++ b/docs/specs/Lidar/HDL64E_S3_Installation_Guide_cn.md
@@ -36,13 +36,13 @@ HDL64E S3 LiDAR需要定制的结构才能安装在车辆顶部。该结构必

   将电源线和信号线连接到LiDAR上的匹配端口

-   ![HDL64_Cabling](images/HDL64_Cabling.JPG)
+   ![HDL64_Cabling](images/HDL64_Cabling.jpg)

 * **连接电源**

   两根AWG 16线用于为HDL-64E S3 LiDAR供电。 它需要大约3A的电流12V电压。连接电源时，请完全接触电线并拧紧螺钉。

-   ![HDL64_Power_Cable](images/HDL64_PowerCable.JPG)
+   ![HDL64_Power_Cable](images/HDL64_PowerCable.jpg)

 * **连接IPC**


--- a/docs/specs/Lidar/images/HDL64_Cabling.JPG
+++ b/docs/specs/Lidar/images/HDL64_Cabling.JPG
--- a/docs/specs/Lidar/images/HDL64_PowerCable.JPG
+++ b/docs/specs/Lidar/images/HDL64_PowerCable.JPG
--- a/docs/specs/apollo_secure_upgrade_user_guide-CN.md
+++ b/docs/specs/apollo_secure_upgrade_user_guide-CN.md
@@ -15,7 +15,7 @@

 一种典型的更新流程如下图所示：

-![](images/apollo_unsecure_upgrade_procedure.JPG)
+![](images/apollo_unsecure_upgrade_procedure.jpg)

 1. 更新服务器生成更新包
 2. 更新包上传至存储服务器
@@ -28,7 +28,7 @@

 在集成Apollo安全更新SDK后，更新流程修改为：

-![](images/apollo_secure_upgrade_procedure.JPG)
+![](images/apollo_secure_upgrade_procedure.jpg)

 1. 更新服务器生成安全更新包和更新包的token
 2. 安全更新包和更新包token上传至存储服务器

--- a/docs/specs/apollo_secure_upgrade_user_guide-EN.md
+++ b/docs/specs/apollo_secure_upgrade_user_guide-EN.md
@@ -14,7 +14,7 @@ Currently, most software upgrade solutions are not securely protected. Therefore
 ## Upgrade Procedure
 A typical upgrade procedure is shown below:

-![](images/apollo_unsecure_upgrade_procedure.JPG)
+![](images/apollo_unsecure_upgrade_procedure.jpg)

 1. The upgrade server generates the upgrade package.
 2. Packages are uploaded to the storage server.
@@ -27,7 +27,7 @@ A typical upgrade procedure is shown below:

 After integrating secure upgrade SDK, the upgrade procedure is modified as follows:

-![](images/apollo_secure_upgrade_procedure.JPG)
+![](images/apollo_secure_upgrade_procedure.jpg)

 1. The upgrade server generates the secure package and package token.
 2. Secure packages and the package token are uploaded to the storage server.

--- a/docs/specs/images/apollo_secure_upgrade_procedure.JPG
+++ b/docs/specs/images/apollo_secure_upgrade_procedure.JPG
--- a/docs/specs/images/apollo_unsecure_upgrade_procedure.JPG
+++ b/docs/specs/images/apollo_unsecure_upgrade_procedure.JPG