added me as a contributor

Author: itsazzad

package.json

@@ -2,7 +2,8 @@
   "name": "redux-vue-connect",
   "version": "0.7.3",
   "description": "Vue Redux binding higher order component",
-  "author": "Nadim Tuhin",
+  "author": "Sazzad Hossain Khan",
+  "contributor": "Sazzad Hossain Khan",
   "repository": {
     "type": "git",
     "url": "https://github.com/itsazzad/redux-vue.git"