Add development instructions to README

Stephen Gregory · Stephen Gregory · commit 4ab3fa09527f · 2015-09-07T22:23:34.000-02:30
diff --git a/README.md b/README.md
@@ -122,6 +122,12 @@ Interactive Linter in available through Brackets extensions' registry.
 }
 ```
 
+### Development
+
+Install and restore the dependencies:
+
+    $ npm install
+    $ npm run restore
 
 ### Links
 
