docs: fix typos in get-started

docs/en/get-started/establish-serial-connection.rst

@@ -330,7 +330,7 @@ An example log is shown below. Reset the board if you do not see anything.
     I (45) boot: compile time 18:48:10
     ...
 
-If you can see readable log output, it means serial connection is working and you are ready to proceed with installation and finally upload of application to {IDF_TARGET_NAME}.
+If you can see readable log output, it means serial connection is working and you are ready to proceed with installation and finally upload an application to {IDF_TARGET_NAME}.
 
 .. note::
 

docs/zh_CN/get-started/linux-macos-setup.rst

@@ -154,7 +154,7 @@ ESP-IDF 将下载至 ``~/esp/esp-idf``。
     cd ~/esp/esp-idf
     ./install.fish {IDF_TARGET_PATH_NAME}
 
-上述命令仅仅为 {IDF_TARGET_NAME} 安装所需工具。如果需要为多个目标芯片开发项目，则可以一次性指定多个目标，如下所示::
+上述命令仅仅为 {IDF_TARGET_NAME} 安装所需工具。如果需要为多个目标芯片开发项目，则可以一次性指定多个目标，如下所示：
 
 .. code-block:: bash