[MISC] Activating Open Collective (#601)

* Added financial contributors to the README

* Update README.md

* Update README.md

* Add logos to README.md

* Update README.md

Co-authored-by: Amir Zarrinkafsh <nightah@me.com>
Co-authored-by: Clément Michaud <clement.michaud34@gmail.com>

README.md

@@ -3,15 +3,15 @@
 </p>
 
   [![Build](https://img.shields.io/buildkite/d6543d3ece3433f46dbe5fd9fcfaf1f68a6dbc48eb1048bc22/master?style=flat-square&color=brightgreen)](https://buildkite.com/authelia/authelia)
-  [![Go Report Card](https://goreportcard.com/badge/github.com/authelia/authelia?style=flat-square)](https://goreportcard.com/report/github.com/authelia/authelia)
+  [![Go Report Card](https://goreportcard.com/badge/github.com/authelia/authelia?logo=go&style=flat-square)](https://goreportcard.com/report/github.com/authelia/authelia)
   [![Docker Tag](https://img.shields.io/docker/v/authelia/authelia?logo=docker&style=flat-square&color=blue&sort=semver)](https://microbadger.com/images/authelia/authelia)
   [![Docker Size](https://img.shields.io/docker/image-size/authelia/authelia?logo=docker&style=flat-square&color=blue&sort=semver)](https://hub.docker.com/r/authelia/authelia/tags)
   [![GitHub Release](https://img.shields.io/github/release/authelia/authelia.svg?logo=github&style=flat-square&color=blue)](https://github.com/authelia/authelia/releases)
   [![AUR source version](https://img.shields.io/aur/version/authelia?logo=arch-linux&label=authelia&style=flat-square&color=blue)](https://aur.archlinux.org/packages/authelia/)
   [![AUR binary version](https://img.shields.io/aur/version/authelia-bin?logo=arch-linux&label=authelia-bin&style=flat-square&color=blue)](https://aur.archlinux.org/packages/authelia-bin/)
   [![AUR development version](https://img.shields.io/aur/version/authelia-git?logo=arch-linux&label=authelia-git&style=flat-square&color=blue)](https://aur.archlinux.org/packages/authelia-git/)
-  [![License](https://img.shields.io/github/license/authelia/authelia?style=flat-square&color=blue)][Apache 2.0]
+  [![License](https://img.shields.io/github/license/authelia/authelia?logo=apache&style=flat-square&color=blue)][Apache 2.0]
-  [![Sponsor](https://img.shields.io/badge/donate-opencollective-blue.svg?style=flat-square)](https://opencollective.com/authelia-sponsors)
+  [![Sponsor](https://img.shields.io/opencollective/all/authelia-sponsors?logo=Open%20Collective&label=financial%20contributors&style=flat-square&color=blue)](https://opencollective.com/authelia-sponsors)
   [![Matrix](https://img.shields.io/matrix/authelia:matrix.org?logo=matrix&style=flat-square&color=blue)](https://riot.im/app/#/room/#authelia:matrix.org)
 
 **Authelia** is an open-source authentication and authorization server
@@ -121,9 +121,30 @@ See [BREAKING](./BREAKING.md).
 If you want to contribute to Authelia, check the documentation available
 [here](https://docs.authelia.com/contributing/).
 
-## Sponsorship
+## Contributors
 
-[Become a backer](https://opencollective.com/authelia-sponsors) to support Authelia.
+Authelia exists thanks to all the people who contribute. [[Contribute](./CONTRIBUTING.md)].
+<a href="https://github.com/authelia/authelia/graphs/contributors"><img src="https://opencollective.com/authelia-sponsors/contributors.svg?width=890" /></a>
+
+## Backers
+
+Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/authelia-sponsors/contribute)] and help us sustain our community.
+<a href="https://opencollective.com/authelia-sponsors#backers"><img src="https://opencollective.com/authelia-sponsors/backers.svg?width=890"></a>
+
+## Sponsors
+
+Support Authelia by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/authelia-sponsors#sponsor)]
+
+<a href="https://opencollective.com/authelia-sponsors/sponsor/0/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/1/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/2/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/3/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/4/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/5/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/6/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/7/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/8/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/authelia-sponsors/sponsor/9/website"><img src="https://opencollective.com/authelia-sponsors/sponsor/9/avatar.svg"></a>
 
 ## License