move the mention of gitpod to the main readme + modify gitpod description. (#2637)

Co-authored-by: Jay <jasonsaayman@gmail.com>

README.md

@@ -3,6 +3,7 @@
 [![npm version](https://img.shields.io/npm/v/axios.svg?style=flat-square)](https://www.npmjs.org/package/axios)
 [![CDNJS](https://img.shields.io/cdnjs/v/axios.svg?style=flat-square)](https://cdnjs.com/libraries/axios)
 [![build status](https://img.shields.io/travis/axios/axios/master.svg?style=flat-square)](https://travis-ci.org/axios/axios)
+[![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-Ready--to--Code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/axios/axios) 
 [![code coverage](https://img.shields.io/coveralls/mzabriskie/axios.svg?style=flat-square)](https://coveralls.io/r/mzabriskie/axios)
 [![install size](https://packagephobia.now.sh/badge?p=axios)](https://packagephobia.now.sh/result?p=axios)
 [![npm downloads](https://img.shields.io/npm/dm/axios.svg?style=flat-square)](http://npm-stat.com/charts.html?package=axios)
@@ -787,6 +788,13 @@ import axios from 'axios';
 axios.get('/user?ID=12345');
 ```
 
+## Online one-click setup
+
+You can use Gitpod an online IDE(which is free for Open Source) for contributing or running the examples online.
+
+[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/axios/axios/blob/master/examples/server.js)
+
+
 ## Resources
 
 * [Changelog](https://github.com/axios/axios/blob/master/CHANGELOG.md)

examples/README.md

@@ -7,8 +7,4 @@ To run the examples:
 3. `npm install`
 4. `grunt build`
 5. `npm run examples`
-6. [http://localhost:3000](http://localhost:3000)
-
-Or use Gitpod, a free dev environment for GitHub:
-
-[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/axios/axios/blob/master/examples/server.js)
+6. [http://localhost:3000](http://localhost:3000)