Fix main attribute in package.json; update docs accordingly

Author: EnguGH

README.md

@@ -12,7 +12,7 @@ And in your entry file:
 ```
 import Vue from 'vue'
 import lodash from 'lodash'
-import VueLodash from 'vue-lodash/dist/vue-lodash.min'
+import VueLodash from 'vue-lodash'
 
 Vue.use(VueLodash, lodash)
 ```

package.json

@@ -2,7 +2,7 @@
   "name": "vue-lodash",
   "version": "1.0.3",
   "description": "A small wrapper for integrating lodash into VueJs",
-  "main": "index.js",
+  "main": "dist/vue-lodash.min.js",
   "scripts": {
     "test": "echo \"There is currently no test case for this plugin\" && exit 1"
   },