Update README with gravity9 website link

Author: BartekGravity

README.md

@@ -12,7 +12,8 @@ only.
 
 ## Fork
 
-This library was forked from the original repository(https://github.com/java-json-tools/json-patch) by gravity9 to
+This library was forked from the original repository(https://github.com/java-json-tools/json-patch) by
+gravity9(https://www.gravity9.com) to
 maintain and extend it as the original library is no longer supported.
 
 ## What this is