add docker ssh support

docker/README.md

@@ -2,10 +2,10 @@
 
 ## Usage
 ```
-docker pull codeskyblue/docker-gogs
+docker pull gogits/gogs
 
 mkdir -p /var/gogs
-docker run --name=gogs -d -p 10022:22 -p 10080:3000 -v /var/gogs:/data codeskyblue/docker-gogs
+docker run --name=gogs -p 10022:22 -p 10080:3000 -v /var/gogs:/data gogits/gogs
 ```
 
 File will store in local path: `/var/gogs`
@@ -13,13 +13,24 @@ File will store in local path: `/var/gogs`
 Directory `/var/gogs` keeps git repos and gogs data
 
     /var/gogs
-    |── git
-    |   └── gogs-repositories
+    |-- git
+    |   `-- gogs-repositories
     |-- ssh
     |    `-- # ssh pub-pri keys for gogs
     `---- gogs
-        |── conf
-        |── data
-        |── log
-        |── templates
+        |-- conf
+        |-- data
+        |-- log
+        `-- templates
 
+## SSH Support
+
+In order to support ssh, You need to change `HTTP_PORT` and `SSH_PORT` in `/var/gogs/gogs/conf/app.ini`
+
+```
+[server]
+HTTP_PORT = 3000
+SSH_PORT = 10022
+```
+
+setting description can be found in <http://gogs.io/docs/advanced/configuration_cheat_sheet.html>