Add Open Collective to ReadMe

Adds the badge and content from open collective to the readme

Author: JLLeitschuh

README.md

@@ -6,6 +6,8 @@
 [![Commitizen friendly](https://img.shields.io/badge/commitizen-friendly-brightgreen.svg)](http://commitizen.github.io/cz-cli/)
 [![npm](https://img.shields.io/npm/dm/angular-ui-grid.svg)](https://www.npmjs.com/package/angular-ui-grid)
 [![npm](https://img.shields.io/npm/dt/angular-ui-grid.svg)](https://www.npmjs.com/package/angular-ui-grid)
+[![OpenCollective](https://opencollective.com/ui-grid/backers/badge.svg)](#backers) 
+[![OpenCollective](https://opencollective.com/ui-grid/sponsors/badge.svg)](#sponsors)
 
 [![Selenium Test Status](https://saucelabs.com/browser-matrix/nggrid.svg)](https://saucelabs.com/u/nggrid)
 
@@ -178,3 +180,78 @@ All network traffic to GitHub should redirect automatically but they say you sho
 # Thanks
 
 Thanks to [Sauce Labs](http://saucelabs.com) and [BrowserStack](http://www.browserstack.com) for providing their testing platforms to open source projects for free.
+
+
+
+# Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/ui-grid#backer)]
+
+<a href="https://opencollective.com/ui-grid/backer/0/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/1/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/1/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/2/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/2/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/3/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/3/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/4/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/4/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/5/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/5/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/6/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/6/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/7/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/7/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/8/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/8/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/9/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/9/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/10/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/10/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/11/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/11/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/12/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/12/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/13/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/13/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/14/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/14/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/15/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/15/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/16/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/16/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/17/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/17/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/18/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/18/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/19/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/19/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/20/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/20/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/21/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/21/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/22/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/22/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/23/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/23/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/24/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/24/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/25/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/25/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/26/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/26/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/27/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/27/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/28/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/28/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/backer/29/website" target="_blank"><img src="https://opencollective.com/ui-grid/backer/29/avatar.svg"></a>
+
+
+# Sponsors
+
+Become a sponsor and get your logo on our website and on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/ui-grid#sponsor)]
+
+<a href="https://opencollective.com/ui-grid/sponsor/0/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/1/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/2/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/3/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/4/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/5/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/6/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/7/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/8/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/9/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/10/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/11/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/12/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/13/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/14/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/15/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/16/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/17/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/18/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/19/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/20/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/21/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/22/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/23/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/24/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/25/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/26/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/27/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/28/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/ui-grid/sponsor/29/website" target="_blank"><img src="https://opencollective.com/ui-grid/sponsor/29/avatar.svg"></a>
+
+