fix: correct references in package.json

Author: dignifiedquire

.npmignore

@@ -25,3 +25,5 @@ build/Release
 # Dependency directory
 # https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
 node_modules
+
+test

package.json

@@ -2,7 +2,8 @@
   "name": "ipld",
   "version": "0.5.0",
   "description": "JavaScript implementation of the IPLD (InterpPlanetary Linked Data)",
-  "main": "src/index.js",
+  "main": "lib/index.js",
+  "jsnext:main": "src/index.js",
   "scripts": {
     "test": "dignified-test",
     "test:browser": "dignified-test browser",