Added dev example

Author: auser

config/development.example.js

@@ -0,0 +1,10 @@
+module.exports = {
+  firestack: {
+      debug: '*',
+      apiKey: "Your api key",
+      authDomain: "Your auth domain",
+      databaseURL: "Your database url",
+      storageBucket: "Your storage bucket",
+      googleAppId: 'Your google app ID'
+    }
+}