Adding mongo image to the circleci config

.circleci/config.yml

@@ -6,13 +6,8 @@ version: 2
 jobs:
   build:
     docker:
-      # specify the version you desire here
       - image: circleci/node:7.10
-
-      # Specify service dependencies here if necessary
-      # CircleCI maintains a library of pre-built images
-      # documented at https://circleci.com/docs/2.0/circleci-images/
-      # - image: circleci/mongo:3.4.4
+      - image: circleci/mongo:3.4.4
 
     working_directory: ~/repo
 

.eslintrc.js

@@ -30,7 +30,7 @@ module.exports = {
 			skipComments   : true,
 			skipBlankLines : true,
 		}],
-		'max-depth'            : ['warn', { max: 4}],
+		'max-depth'            : ['warn', { max: 4 }],
 		'max-params'           : ['warn', { max: 4 }],
 		'no-restricted-syntax' : ['warn', 'ClassDeclaration', 'SwitchStatement'],
 		'no-unused-vars'       : ['warn', {