Merge pull request #19784 from vdemeester/oh-tools-it

Fix TOOLS.md jenkins plugin link :)

project/TOOLS.md

@@ -16,8 +16,9 @@ Leeroy is a Go application which integrates Jenkins with
 GitHub pull requests. Leeroy uses 
 [GitHub hooks](https://developer.github.com/v3/repos/hooks/) 
 to listen for pull request notifications and starts jobs on your Jenkins 
-server.  Using the Jenkins [notification plugin][jnp], Leeroy updates the 
-pull request using GitHub's 
+server.  Using the Jenkins
+[notification plugin][https://wiki.jenkins-ci.org/display/JENKINS/Notification+Plugin],
+Leeroy updates the pull request using GitHub's 
 [status API](https://developer.github.com/v3/repos/statuses/)
 with pending, success, failure, or error statuses.