quick update for access test

Author: Emmanuel Henri

package.json

@@ -1,6 +1,6 @@
 {
   "name": "mern-cli",
-  "version": "3.0.1",
+  "version": "2.4.0",
   "description": "A cli for generating MERN boilerplate",
   "main": "index.js",
   "watch": {
@@ -54,7 +54,7 @@
     }
   },
   "engines": {
-    "node": ">=4"
+    "node": ">=6"
   },
   "repository": {
     "type": "git",