Merge pull request #10957 from PaddlePaddle/shanyi15-patch-3

fix typo in docker_install_cn.rst

doc/v2/build_and_install/docker_install_cn.rst

@@ -98,7 +98,7 @@ PaddlePaddle Book是为用户和开发者制作的一个交互式的Jupyter Note
 
 国内用户可以使用下面的镜像源来加速访问：
 
-  .. code-block: bash
+  .. code-block:: bash
 
     docker run -p 8888:8888 docker.paddlepaddlehub.com/book
 

doc/v2/build_and_install/docker_install_en.rst

@@ -105,7 +105,7 @@ We provide a packaged book image, simply issue the command:
 
 For users in China, we provide a faster mirror:
 
-  .. code-block: bash
+  .. code-block:: bash
 
     docker run -p 8888:8888 docker.paddlepaddlehub.com/book