Show Codecov and GA badges instead of outdated Coveralls and Travis in docs homepage (#1010)

Author: simPod

README.md

@@ -1,6 +1,6 @@
 # graphql-php
 
-![CI](https://github.com/webonyx/graphql-php/workflows/CI/badge.svg)
+[![CI](https://github.com/webonyx/graphql-php/workflows/CI/badge.svg)](https://github.com/webonyx/graphql-php/actions?query=workflow:CI+branch:master)
 [![Coverage Status](https://codecov.io/gh/webonyx/graphql-php/branch/master/graph/badge.svg)](https://codecov.io/gh/webonyx/graphql-php/branch/master)
 [![Latest Stable Version](https://poser.pugx.org/webonyx/graphql-php/version)](https://packagist.org/packages/webonyx/graphql-php)
 

docs/index.md

@@ -1,8 +1,8 @@
 # graphql-php
 
 [![GitHub stars](https://img.shields.io/github/stars/webonyx/graphql-php.svg?style=social&label=Star)](https://github.com/webonyx/graphql-php)
-[![Build Status](https://travis-ci.org/webonyx/graphql-php.svg?branch=master)](https://travis-ci.org/webonyx/graphql-php)
-[![Coverage Status](https://coveralls.io/repos/github/webonyx/graphql-php/badge.svg)](https://coveralls.io/github/webonyx/graphql-php)
+[![CI](https://github.com/webonyx/graphql-php/workflows/CI/badge.svg)](https://github.com/webonyx/graphql-php/actions?query=workflow:CI+branch:master)
+[![Coverage Status](https://codecov.io/gh/webonyx/graphql-php/branch/master/graph/badge.svg)](https://codecov.io/gh/webonyx/graphql-php/branch/master)
 [![Latest Stable Version](https://poser.pugx.org/webonyx/graphql-php/version)](https://packagist.org/packages/webonyx/graphql-php)
 [![License](https://poser.pugx.org/webonyx/graphql-php/license)](https://packagist.org/packages/webonyx/graphql-php)