fix string version number issue

starter-files/start.js

@@ -1,7 +1,8 @@
 const mongoose = require('mongoose');
 
-// Make sure we are running node 7.6
-if (parseFloat(process.versions.node) < 7.6) {
+// Make sure we are running node 7.6+
+const [major, minor] = process.versions.node.split('.').map(parseFloat);
+if (major <= 7 && minor <= 5) {
   console.log('🛑 🌮 🐶 💪 💩\nHey You! \n\t ya you! \n\t\tBuster! \n\tYou\'re on an older version of node that doesn\'t support the latest and greatest things we are learning (Async + Await)! Please go to nodejs.org and download version 7.6 or greater. 👌\n ');
   process.exit();
 }