Make fix to instructions

doc/v5-to-v6_developers.md

@@ -7,7 +7,7 @@ From your working directory before doing ```muse setup```:
 ```
 mv TrkAna/ EventNtuple/
 cd EventNtuple/
-git remote set-url origin [email protected]/YourUsername/EventNtuple
+git remote set-url origin [email protected]:YourUsername/EventNtuple
 git remote set-url mu2e https://github.com/Mu2e/EventNtuple
 cd ../
 rm -rf build/XXX/ # if you like