Update index.rst

web/containers/index.rst

@@ -75,8 +75,8 @@ Move the file to `~/.kube/config`
 
 .. warning:: Please unset any `OpenStack` shell environment variable (`OS_XXX`),
      to avoid conflicts in the authentication process::
-
-     env| grep OS_
+     
+     $ env| grep OS_
 
 Test the credentials::