feat: add ability to make workspace for other user from cli (#8481)

* feat: add ability to make workspace for other user from cli
* Add example to show functionality

docs/cli/create.md

@@ -10,6 +10,14 @@ Create a workspace
 coder create [flags] [name]
 ```
 
+## Description
+
+```console
+  - Create a workspace for another user (if you have permission):
+
+      $ coder create <username>/<workspace_name>
+```
+
 ## Options
 
 ### --build-options