README.md in mayday-0.1.2 vs README.md in mayday-0.2.0

@@ -63,9 +63,21 @@
 
 ![Mayday warnings and errors in Xcode](https://raw.githubusercontent.com/marklarr/mayday/master/docs/example.jpg?token=760261__eyJzY29wZSI6IlJhd0Jsb2I6bWFya2xhcnIvbWF5ZGF5L21hc3Rlci9kb2NzL2V4YW1wbGUuanBnIiwiZXhwaXJlcyI6MTQxNDM5MDIxNH0%3D--e7969b95aea1bc76749ae9226d2ac5ffef0cf322)
 
 ![Mayday warnings and errors in Xcode, inline](https://raw.githubusercontent.com/marklarr/mayday/master/docs/example_inline.jpg?token=760261__eyJzY29wZSI6IlJhd0Jsb2I6bWFya2xhcnIvbWF5ZGF5L21hc3Rlci9kb2NzL2V4YW1wbGVfaW5saW5lLmpwZyIsImV4cGlyZXMiOjE0MTQzOTAzMzh9--bc9abbe40843317e7b6a30a9521ebf6ae457ece2)
 
+You can also run mayday from the command line
+
+```sh
+$ mayday run
+```
+
+You also have the option to choose the file specifying the project and rules (by default this will be `Maydayfile`) using
+
+```sh
+$ mayday run --rules MyRulesFile
+```
+
 Since Ruby is installed by default on OSX, the warnings and errors will work for anybody building your project, even if they don't have RVM, RubyGems, or mayday.
 
 ### Options
 
 `warning`, `error`, `warning_regex`, and `error_regex` all accept an options hash with any of the following options