update docs

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/device-dev/quick-start/quickstart-ide-lite-sourcecode-acquire.md

@@ -19,13 +19,13 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
    ```
 
      Run the following command to install the tools:
-     
+   
    ```
    sudo apt-get install git git-lfs
    ```
 
 4. Configure user information.
-     
+   
    ```
    git config --global user.name "yourname"
    git config --global user.email "your-email-address"
@@ -33,7 +33,7 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
    ```
 
 5. Run the following commands to install the **repo** tool:
-     
+   
    ```
    curl https://gitee.com/oschina/repo/raw/fork_flow/repo-py3 -o /usr/local/bin/repo  # If you do not have the access permission to this directory, download the tool to any other accessible directory and configure the directory to the environment variable.
    chmod a+x /usr/local/bin/repo
@@ -41,7 +41,7 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
    ```
 
 
-## Obtaining Source Code
+## Procedure
 
 > ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
 > Download the master code if you want to get quick access to the latest features for your development. Download the release code, which is more stable, if you want to develop commercial functionalities.
@@ -58,7 +58,7 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
 
   Method 2: Use the **repo** tool to download the source code over HTTPS.
 
-    
+  
   ```
   repo init -u https://gitee.com/openharmony/manifest.git -b master --no-repo-verify
   repo sync -c
@@ -72,8 +72,8 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
 
 ## Running prebuilts
 
-  Go to the root directory of the source code and run the following script to install the compiler and binary tool:
-  
+Go to the root directory of the source code and run the following script to install the compiler and binary tool:
+
 ```
 bash build/prebuilts_download.sh
 ```

en/device-dev/quick-start/quickstart-ide-standard-sourcecode-acquire.md

@@ -4,7 +4,7 @@
 In the Ubuntu environment, perform the following steps to obtain the OpenHarmony source code:
 
 
-## Before You Start
+## Preparations
 
 1. Register your account with Gitee.
 
@@ -41,7 +41,7 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
    ```
 
 
-## Obtaining Source Code
+## Procedure
 
 > ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**<br/>
 > Download the master code if you want to get quick access to the latest features for your development. Download the release code, which is more stable, if you want to develop commercial functionalities.

en/device-dev/quick-start/quickstart-lite-env-setup.md

@@ -278,7 +278,7 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
    ```
 
 
-### Obtaining Source Code
+### Procedure
 
 > ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**<br>
 > Download the master code if you want to get quick access to the latest features for your development. Download the release code, which is more stable, if you want to develop commercial functionalities.
@@ -309,7 +309,7 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
 
 ### Running prebuilts
 
-  Go to the root directory of the source code and run the following script to install the compiler and binary tool:
+Go to the root directory of the source code and run the following script to install the compiler and binary tool:
 
 ```
 bash build/prebuilts_download.sh

en/device-dev/quick-start/quickstart-standard-env-setup.md

@@ -267,7 +267,7 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
    ```
 
 
-### Obtaining Source Code
+### Procedure
 
 > ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**<br>
 > Download the master code if you want to get quick access to the latest features for your development. Download the release code, which is more stable, if you want to develop commercial functionalities.
@@ -298,7 +298,7 @@ In the Ubuntu environment, perform the following steps to obtain the OpenHarmony
 
 ### Running prebuilts
 
-  Go to the root directory of the source code and run the following script to install the compiler and binary tool:
+Go to the root directory of the source code and run the following script to install the compiler and binary tool:
 
 ```
 bash build/prebuilts_download.sh