Add link to reiyua's GitHub profile trophy site mirror (#427)

Author: reiyua

README.md

@@ -65,6 +65,8 @@ These are endpoints provided by volunteers. Please use these in moderation.
   [kolioaris](https://github.com/kolioaris)
 - [https://github-profile-trophy-orcin-eta.vercel.app](https://github-profile-trophy-orcin-eta.vercel.app/) by
   [manupawick](https://github.com/manupawickramasinghe)
+- [https://github-profile-trophy-reiyua-mirror.vercel.app](https://github-profile-trophy-reiyua-mirror.vercel.app) by
+  [reiyua](https://github.com/reiyua)
 
 # Quick Start