Update README.md

Author: TheMasonX

README.md

@@ -18,6 +18,6 @@ Currently only works with "Directional" light sources, as it's primarily an over
 The shadows themselves do work with **BOTH 5.5 and 5.6** (no modifications necessary, it automatically detects and adapts to either version), but as this is a **Unity 5.6 project**, the materials in the demo scene do not import correctly in 5.5. There are only 3 or so materials that need their albedo/metallic/specular textures assigned from the nearby "Textures" folder, so it's not that bad, but if anybody has any ideas to fix this, please let me know! :)
 
 # Future Development
-This asset and any improvements will remain free (both as in beer and speech), but if you wish to support me spending extra time on this, you can donate to me through PayPal: paypal.me/TheMasonX. NOTE: Please do not feel pressured to donate it's just an option if anyone wishes to support me spending more time on this, and less on my game, which I can't even use it for.
+This asset and any improvements will remain free (both as in beer and speech), but if you wish to support me spending extra time on this, you can donate to me through [PayPal](paypal.me/TheMasonX). NOTE: Please do not feel pressured to donate it's just an option if anyone wishes to support me spending more time on this, and less on my game, which I can't even use it for.
 
 I obviously didn't do this to make money though; instead, I'd prefer support in the form of you guys contributing back any fixes/improvements, so that we can all benefit :) I made it Open Source rather than just a free asset because I believe that if we work together, we can create something truly amazing. Thanks for the interest, and I hope you guys get some good use out of it! Let me know if you have any issues or ideas, and I'll respond to pull requests ASAP.