docs(package): fix homepage typo

Author: Manduro

package.json

@@ -2,7 +2,7 @@
   "name": "@ionic/app-scripts",
   "version": "0.0.30",
   "description": "Scripts for Ionic Projects",
-  "homepage": "http//ionicframework.com/",
+  "homepage": "http://ionicframework.com/",
   "author": "Ionic Team <[email protected]> (http://ionic.io)",
   "license": "MIT",
   "files": [