Add README for gitrepo SR

software/gitrepo/README.txt

+gitrepo
+=======
+
+This software release allow you to get a private mono-user git
+repository with web interface.
+
+This software release only need one parameter “repos”, which is
+a json object of the repos and their description.
+
+It can receive a “title” parameter as well in order to specify
+a title for gitweb interface interface.
+
+Example
+--------
+
+::
+  repo = request(
+      software_release=gitrepo,
+      partiion_reference="My SlapGit",
+      partition_parameter_kw={
+        'repos': """
+          {
+            "repo": "description",
+            "foo": "bar"
+          }
+        """,
+        'title': 'optional title',
+      }
+  )
+