added yarn init

Author: eddiewang

package.json

@@ -2,10 +2,7 @@
   "name": "react-boilerplate",
   "version": "3.0.0",
   "description": "A highly scalable, offline-first foundation with the best DX and a focus on performance and best practices",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/mxstbr/react-boilerplate.git"
-  },
+  "repository": "git://github.com/mxstbr/react-boilerplate.git",
   "engines": {
     "npm": ">=3"
   },
@@ -292,5 +289,6 @@
     "webpack": "2.1.0-beta.15",
     "webpack-dev-middleware": "1.6.1",
     "webpack-hot-middleware": "2.12.2"
-  }
+  },
+  "main": "index.js"
 }