[add] updated examples. added coverage report

Author: filipecosta90

.circleci/config.yml

@@ -26,6 +26,11 @@ jobs:
       - run:
           name: test
           command: npm test
+
+      - run:
+          name: coverage
+          command: npm run coverage
+
       - store_artifacts:
           path: test-results.xml
           prefix: tests

README.md

@@ -1,6 +1,7 @@
 [![license](https://img.shields.io/github/license/filipecosta90/redisai-js.svg)](https://github.com/filipecosta90/redisai-js)
 [![CircleCI](https://circleci.com/gh/filipecosta90/redisai-js/tree/master.svg?style=svg)](https://circleci.com/gh/filipecosta90/redisai-js/tree/master)
 [![npm version](https://badge.fury.io/js/redisai-js.svg)](https://badge.fury.io/js/redisai-js)
+[![codecov](https://codecov.io/gh/filipecosta90/redisai-js/branch/master/graph/badge.svg)](https://codecov.io/gh/filipecosta90/redisai-js)
 
 ## A high performance node.js RedisAI client
 [![Forum](https://img.shields.io/badge/Forum-RedisAI-blue)](https://forum.redislabs.com/c/modules/redisai)