fix(package.json): point to right main

Author: daviddias

package.json

@@ -6,7 +6,7 @@
     "type": "git",
     "url": "https://github.com/diasdavid/interface-transport.git"
   },
-  "main": "src/index.js",
+  "main": "lib/index.js",
   "jsnext:main": "src/index.js",
   "scripts": {
     "lint": "aegir-lint",
@@ -46,4 +46,4 @@
     "Richard Littauer <[email protected]>",
     "greenkeeperio-bot <[email protected]>"
   ]
-}
+}