docs(dashboard): improve instructions

mod/dashboard/README.md

@@ -2,6 +2,8 @@
 
 ## Developing
 
+If you'd like to contribute to the etcd dashboard mod, follow these instructions. For contributing to the rest of etcd, see the contributing document in the root of the repository.
+
 ### Install yeoman
 
 http://yeoman.io/
@@ -12,7 +14,7 @@ http://yeoman.io/
 npm install
 ```
 
-### Install Bower
+### Install Bower Components
 
 ```
 bower install
@@ -20,4 +22,6 @@ bower install
 
 ### View in Browser
 
+Run etcd like you normally would and afterward browse to:
+
 http://localhost:4001/etcd/mod/dashboard/