fix --name

ghost/content.md

@@ -11,7 +11,7 @@ Ghost is a free and open source blogging platform written in JavaScript and dist
 This will start a Ghost instance listening on the default Ghost port of 2368.
 
 ```console
-$ docker run —d name ghostdemo ghost
+$ docker run —d --name ghostdemo ghost
 ```
 
 ### Custom port
@@ -19,7 +19,7 @@ $ docker run —d name ghostdemo ghost
 If you'd like to be able to access the instance from the host without the container's IP, standard port mappings can be used:
 
 ```console
-$ docker run —d name ghostdemo -p 3001:2368 ghost
+$ docker run —d --name ghostdemo -p 3001:2368 ghost
 ```
 
 Then, access it via `http://localhost:3001` or `http://host-ip:3001` in a browser.
@@ -31,13 +31,13 @@ Mount your existing content. In this example we also use the Alpine base image.
 ### Ghost 1.x.x
 
 ```console
-$ docker run —d name ghostdemo -p 3001:2368 -v /path/to/ghost/blog:/var/lib/ghost/content/ ghost:1-alpine
+$ docker run —d --name ghostdemo -p 3001:2368 -v /path/to/ghost/blog:/var/lib/ghost/content/ ghost:1-alpine
 ```
 
 ### Ghost 0.11.xx
 
 ```console
-$ docker run —d name ghostdemo -p 3001:2368 -v /path/to/ghost/blog:/var/lib/ghost/ ghost:0.11-alpine
+$ docker run —d --name ghostdemo -p 3001:2368 -v /path/to/ghost/blog:/var/lib/ghost/ ghost:0.11-alpine
 ```
 
 ### Breaking change