fix: Add note about LeaderGPU, as promised. Ty guys!

Author: robertleeplummerjr

README.md

@@ -909,6 +909,7 @@ Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com
 
 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/gpujs#sponsor)]
 
+Sponsored NodeJS GPU environment from [LeaderGPU](https://www.leadergpu.com) - These guys rock!
 <a href="https://opencollective.com/gpujs/sponsor/0/website" target="_blank"><img src="https://opencollective.com/gpujs/sponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/gpujs/sponsor/1/website" target="_blank"><img src="https://opencollective.com/gpujs/sponsor/1/avatar.svg"></a>
 <a href="https://opencollective.com/gpujs/sponsor/2/website" target="_blank"><img src="https://opencollective.com/gpujs/sponsor/2/avatar.svg"></a>