Update README.md

m3m0r7 · m3m0r7 · commit 42920f419540 · 2019-04-08T12:19:38.000+09:00
diff --git a/README.md b/README.md
@@ -12,6 +12,8 @@ The PHPJava reads binary from pre-compiled Java file(s) ☕
 This project referred to [Java Virtual Machine Specification](https://docs.oracle.com/javase/specs/jvms/se11/html/index.html) documentation at the time we made it.
 
 We are welcoming any contributions to this project 💪
+Contribution guide is here:
+- [The Contribution Guide](https://github.com/memory-agape/php-java/wiki/The-Contribution-Guide) 
 
 ## Requirements
 - PHP >= 7.2
