Added git-stats.

cli-apps.yaml

@@ -878,6 +878,12 @@ apps:
                 Manages files with `git`, without checking the file
                 contents into git; very useful to manage large/binary
                 files.
+        -
+            name: git-stats
+            url: hhttps://github.com/IonicaBizau/git-stats
+            description: |
+                "Local git statistics including GitHub-like contributions
+                calendars."
         -
             name: Mercurial
             url: https://www.mercurial-scm.org/