fix TDEngine typo

documentation20/cn/05.insert/docs.md

@@ -315,7 +315,7 @@ taosAdapter 相关配置参数请参考 taosadapter --help 命令输出以及相
 
 ## <a class="anchor" id="emq"></a>EMQ Broker 直接写入
 
-MQTT是流行的物联网数据传输协议，[EMQ](https://github.com/emqx/emqx)是一开源的MQTT Broker软件，无需任何代码，只需要在EMQ Dashboard里使用“规则”做简单配置，即可将MQTT的数据直接写入TDengine。EMQ X 支持通过 发送到 Web 服务的方式保存数据到 TDEngine，也在企业版上提供原生的 TDEngine 驱动实现直接保存。详细使用方法请参考 [EMQ 官方文档](https://docs.emqx.com/zh/enterprise/v4.4/rule/backend_tdengine.html#%E4%BF%9D%E5%AD%98%E6%95%B0%E6%8D%AE%E5%88%B0-tdengine)。
+MQTT是流行的物联网数据传输协议，[EMQ](https://github.com/emqx/emqx)是一开源的MQTT Broker软件，无需任何代码，只需要在EMQ Dashboard里使用“规则”做简单配置，即可将MQTT的数据直接写入TDengine。EMQ X 支持通过 发送到 Web 服务的方式保存数据到 TDengine，也在企业版上提供原生的 TDengine 驱动实现直接保存。详细使用方法请参考 [EMQ 官方文档](https://docs.emqx.com/zh/enterprise/v4.4/rule/backend_tdengine.html#%E4%BF%9D%E5%AD%98%E6%95%B0%E6%8D%AE%E5%88%B0-tdengine)。
 
 ## <a class="anchor" id="hivemq"></a>HiveMQ Broker 直接写入
 

documentation20/en/03.architecture/docs.md

@@ -157,7 +157,7 @@ Logical structure diagram of TDengine distributed architecture as following:
 ![TDengine architecture diagram](../images/architecture/structure.png)
 <center> Figure 1: TDengine architecture diagram </center>
 
-A complete TDengine system runs on one or more physical nodes. Logically, it includes data node (dnode), TDEngine application driver (TAOSC) and application (app). There are one or more data nodes in the system, which form a cluster. The application interacts with the TDengine cluster through TAOSC's API. The following is a brief introduction to each logical unit.
+A complete TDengine system runs on one or more physical nodes. Logically, it includes data node (dnode), TDengine application driver (TAOSC) and application (app). There are one or more data nodes in the system, which form a cluster. The application interacts with the TDengine cluster through TAOSC's API. The following is a brief introduction to each logical unit.
 
 **Physical node (pnode)**: A pnode is a computer that runs independently and has its own computing, storage and network capabilities. It can be a physical machine, virtual machine, or Docker container installed with OS. The physical node is identified by its configured FQDN (Fully Qualified Domain Name). TDengine relies entirely on FQDN for network communication. If you don't know about FQDN, please read the blog post "[All about FQDN of TDengine](https://www.taosdata.com/blog/2020/09/11/1824.html)".
 

documentation20/en/08.connector/01.java/docs.md

@@ -579,7 +579,7 @@ public void setString(int columnIndex, ArrayList<String> list, int size) throws
 public void setNString(int columnIndex, ArrayList<String> list, int size) throws SQLException
 ```
 ### Set client configuration in JDBC
-Starting with TDEngine-2.3.5.0, JDBC Driver supports setting TDengine client parameters on the first connection of a Java application. The Driver supports jdbcUrl and Properties to set client parameters in JDBC-JNI mode.
+Starting with TDengine-2.3.5.0, JDBC Driver supports setting TDengine client parameters on the first connection of a Java application. The Driver supports jdbcUrl and Properties to set client parameters in JDBC-JNI mode.
 
 Note:
 * JDBC-RESTful does not support setting client parameters.

documentation20/en/08.connector/docs.md

@@ -631,7 +631,7 @@ Users can directly view the usage information of the module through Python's hel
 
 - *TDengineConnection* class
 
-Refer to help (taos.TDEngineConnection) in python. This class corresponds to a connection between the client and TDengine. In the scenario of client multithreading, it is recommended that each thread apply for an independent connection instance, but not recommended that multiple threads share a connection.
+Refer to help (taos.TDengineConnection) in python. This class corresponds to a connection between the client and TDengine. In the scenario of client multithreading, it is recommended that each thread apply for an independent connection instance, but not recommended that multiple threads share a connection.
 
 - *TDengineCursor* class
 

documentation20/en/09.connections/docs.md

@@ -137,7 +137,7 @@ sql1 = [‘insert into tb values (now, 1)’]
 exec(conn, sql1)
 ```
 
-For more detailed examples, please refer to the examples\Matlab\TDEngineDemo.m file in the package.
+For more detailed examples, please refer to the examples\matlab\TDengineDemo.m file in the package.
 
 ## <a class="anchor" id="r"></a> R