Fix fork example link

README.md

@@ -76,7 +76,7 @@ The fork-style workflow is useful when there are numerous contributors managing
 
 Forking a repository on GitLab:
 
-* Browse to https://xgitlab.cels.anl.gov/systems/git-tips.git
+* Browse to https://xgitlab.cels.anl.gov/cpbills/git-tips.git
 * Click the button in the top right that says 'Fork'
 * Select the namespace you want to create the fork in