fix link to screenshot in README.md

Author: bradym

README.md

@@ -6,7 +6,7 @@ repositories.  Scan for .git dirs up to **DEPTH** directories deep.
 The default is 2.  If **DEPTH** is 0, the scan is infinitely deep.
 mgitstatus shows:
 
-![](https://raw.githubusercontent.com/fboender/mgitstatus/master/screenshot.png)
+![](https://raw.githubusercontent.com/fboender/multi-git-status/master/screenshot.png)
 
 mgitstatus shows: