Changed main entry in package.json

Author: erikras

package.json

@@ -2,9 +2,7 @@
   "name": "redux-form-doc-version-checker",
   "version": "1.2.1",
   "description": "A widget to notify people if they are not reading the most recent docs.",
-  "main": "dist/doc-check.cjs.js",
-  "jsnext:main": "dist/doc-check.es.js",
-  "module": "dist/doc-check.es.js",
+  "main": "dist/doc-check.umd.min.js",
   "files": [
     "dist"
   ],