docs: make Contact copy-friendly (code block + mailto)

Author: CoderDeltaLAN

README.md

@@ -267,6 +267,12 @@ Every source file must include:
 
 15) Author
 ----------
-CoderDeltaLAN (Yosvel)  
-Contact: [email protected]  
+CoderDeltaLAN (Yosvel)
+
+Contact:
+```text
+[email protected]
+```
+[Send email](mailto:[email protected])
+
 Repository: https://github.com/CoderDeltaLAN/ai-patch-verifier