update link to repo

Author: ironsheep

libraries/community/p2/All/isp_hub75_matrix/README.md

@@ -13,7 +13,7 @@ Driver for HUB75 controlled RGB LED Matrix Panels
 
 Related: 
 
-- See Docs, Setup Instructions at [HUB75 LED Matrix Driver Github Repository](https://github.com/ironsheep/p2-LED-Matrix-Driver)
+- See Docs, Setup Instructions at [HUB75 LED Matrix Driver Github Repository](https://github.com/ironsheep/p2-HUB75-LED-Matrix-Driver)
 - Watch for P2 Eval HUB75 Driver Board soon to be for sale at [Parallax Shop](https://www.parallax.com/product-category/propeller-2/)
 
 License: MIT (see end of source code)