Add email to Readme

The email is not seen anywhere on gitea, so it needs to be there explicitly.

README.md

@@ -119,7 +119,7 @@ The far future
 Contributing
 ====
 
-Please write me an e-mail, similar to how Linux kernel development works. In
+Please write me an [email](mailto:quickplaygt@pokemon.ledoian.cz), similar to how Linux kernel development works. In
 the unlikely case you have an account on my Gitea you may submit issues and
 pull requests directly.