docs: update BACKERS.md

BACKERS.md

@@ -2,6 +2,7 @@
 
 Wiki.js is an AGPL-licensed open source project. It's an independent project with its ongoing development made possible entirely thanks to the support by the awesome backers listed below. If you'd like to join them, please consider:
 
+- [Become a GitHub Sponsor](https://github.com/sponsors/NGPixel)
 - [Become a backer or sponsor on Patreon](https://www.patreon.com/requarks).
 - [Become a backer or sponsor on OpenCollective](https://opencollective.com/wikijs).
 
@@ -11,6 +12,10 @@ Funds donated via Patreon go directly to support lead developer [Nicolas Giard](
 
 <br><br>
 
+<h2 align="center">GitHub Sponsors</h2>
+
+- M. Scott Ford ([@mscottford](https://github.com/mscottford))
+
 <h2 align="center">Sponsors via OpenCollective</h2>
 
 <a href="https://opencollective.com/wikijs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/wikijs/sponsor/0/avatar.svg"></a>