Added backers and sponsors on the README

README.md

@@ -1,9 +1,10 @@
 [![npm][npm]][npm-url]
 [![node][node]][node-url]
+[![npm](https://img.shields.io/npm/dw/html-webpack-plugin.svg)]
 [![deps][deps]][deps-url]
 [![tests][tests]][tests-url]
-[![coverage][cover]][cover-url]
-[![chat][chat]][chat-url]
+[![Backers on Open Collective](https://opencollective.com/html-webpack-plugin/backers/badge.svg)](#backers)
+ [![Sponsors on Open Collective](https://opencollective.com/html-webpack-plugin/sponsors/badge.svg)](#sponsors) 
 
 <div align="center">
   <img width="200" height="200" src="https://worldvectorlogo.com/logos/html5.svg">
@@ -374,8 +375,33 @@ Before running the tests, make sure to execute `yarn link` and `yarn link html-w
 [tests]: http://img.shields.io/travis/jantimon/html-webpack-plugin.svg
 [tests-url]: https://travis-ci.org/jantimon/html-webpack-plugin
 
-[cover]: https://img.shields.io/codecov/c/github/jantimon/html-webpack-plugin.svg
-[cover-url]: https://codecov.io/gh/jantimon/html-webpack-plugin
 
-[chat]: https://badges.gitter.im/webpack/webpack.svg
-[chat-url]: https://gitter.im/webpack/webpack
+## Contributors
+
+This project exists thanks to all the people who contribute. [Contribute](CONTRIBUTING.md).
+<a href="graphs/contributors"><img src="https://opencollective.com/html-webpack-plugin/contributors.svg?width=890&button=false" /></a>
+
+
+## Backers
+
+Thank you to all our backers! 🙏 [Become a backer](https://opencollective.com/html-webpack-plugin#backer)
+
+<a href="https://opencollective.com/html-webpack-plugin#backers" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/backers.svg?width=890"></a>
+
+
+## Sponsors
+
+Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor](https://opencollective.com/html-webpack-plugin#sponsor)
+
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/0/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/1/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/2/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/3/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/4/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/5/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/6/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/7/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/8/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/html-webpack-plugin/sponsor/9/website" target="_blank"><img src="https://opencollective.com/html-webpack-plugin/sponsor/9/avatar.svg"></a>
+
+