Update README.md

Update link to JGit.

README.md

@@ -1,7 +1,7 @@
 RJGit
 =====
 
-### A JRuby wrapper around the [JGit library](https://github.com/eclipse/jgit) for manipulating Git repositories, the Ruby way.
+### A JRuby wrapper around the [JGit library](https://eclipse.dev/jgit/) for manipulating Git repositories, the Ruby way.
 
 [![Ruby Build](https://github.com/repotag/rjgit/actions/workflows/test.yaml/badge.svg)](https://github.com/repotag/rjgit/actions/workflows/test.yaml)
 [![Coverage Status](https://coveralls.io/repos/repotag/rjgit/badge.png?branch=master)](https://coveralls.io/r/repotag/rjgit)