README.md in vagrant-shell-commander-0.1.2 vs README.md in vagrant-shell-commander-0.1.3

@@ -13,18 +13,18 @@
 
 ## Usage
 
 To execute a command on all the machines:
 
-    $ vagrant sh --cmd 'free'
+    $ vagrant sh -c 'free'
 
 Restrict the machine to run:
 
-    $ vagrant sh --cmd 'free' machine1
+    $ vagrant sh -c 'free' machine1
 
 Specify the working directory:
 
-    $ vagrant sh --cmd 'ls -al' --dir '/srv/www'
+    $ vagrant sh -c 'ls -al' -d '/srv/www'
 
 Get help:
 
     $ vagrant sh -h