Merge pull request #2 from GeekRishabh/dependabot/npm_and_yarn/mongoose-5.8.11

Bump mongoose from 4.13.20 to 5.8.11

Author: geekrishabh

package.json

@@ -13,7 +13,7 @@
     "express": "^4.14.0",
     "express-graphql": "^0.6.1",
     "graphql": "^0.8.2",
-    "mongoose": "^4.7.2"
+    "mongoose": "^5.8.11"
   },
   "devDependencies": {
     "babel": "^6.5.2",