Updated formatting and README

Author: maneesht

README.md

@@ -126,7 +126,8 @@ command, as follows:
 
 
 ```bash
-# Select the Firebase project via the text-based UI.
+# Select the Firebase project via the text-based UI. This will run tools/config.js
+# and deploy from config/ to your local project.
 $ yarn test:setup
 
 # Specify the Firebase project via the command-line arguments.