增加 Wechat 镜像和启动方法.

Signed-off-by: chen.yang <chen.yang@yuzhen-iot.com>

Software/Applications/Docker/Docker_安装和使用.md

@@ -202,3 +202,21 @@ docker pull nvidia/cuda:10.2-cudnn7-runtime-ubuntu16.04
 docker pull tensorflow/tensorflow:1.11.0-py3
 docker pull jupyter/tensorflow-notebook:17aba6048f44
 ```
+
+Wechat 镜像和启动方法：
+
+```bash
+docker pull bestwu/wechat
+xhost +
+docker run -d --name wechat --device /dev/snd --ipc=host \
+-v /tmp/.X11-unix:/tmp/.X11-unix \
+-v $HOME/WeChatFiles:/WeChatFiles \
+-e DISPLAY=unix$DISPLAY \
+-e XMODIFIERS=@im=fcitx \
+-e QT_IM_MODULE=fcitx \
+-e GTK_IM_MODULE=fcitx \
+-e AUDIO_GID=`getent group audio | cut -d: -f3` \
+-e GID=`id -g` \
+-e UID=`id -u` \
+bestwu/wechat
+```