Merge pull request loiane#52 from loiane/greenkeeper/initial

Update dependencies to enable Greenkeeper 🌴

Author: loiane

README.md

@@ -1,6 +1,8 @@
 Learning JavaScript Data Structures and Algorithms
 ====================================
 
+[![Greenkeeper badge](https://badges.greenkeeper.io/loiane/javascript-datastructures-algorithms.svg)](https://greenkeeper.io/)
+
 [![Build Status](https://travis-ci.org/loiane/javascript-datastructures-algorithms.svg?branch=third-edition)](https://travis-ci.org/loiane/javascript-datastructures-algorithms)
 [![codecov](https://codecov.io/gh/loiane/javascript-datastructures-algorithms/branch/third-edition/graph/badge.svg)](https://codecov.io/gh/loiane/javascript-datastructures-algorithms)
 

package.json

@@ -54,7 +54,7 @@
   },
   "devDependencies": {
     "@types/chai": "^4.1.2",
-    "@types/mocha": "^2.2.48",
+    "@types/mocha": "^5.0.0",
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.0",
     "babel-eslint": "^8.2.2",