Add socrates* tags for version tracking

Author: yaswant

git-migration/config.json

@@ -223,7 +223,8 @@
         { "um13.6": 1642 },
         { "um13.7": 1673 },
         { "um13.8": 1741 },
-        { "um13.9": 1831 }
+        { "um13.9": 1831 },
+        { "git_migration": 1951 }
       ]
     },
     {
@@ -559,7 +560,8 @@
         { "um13.6": 1613 },
         { "um13.7": 1613 },
         { "um13.8": 1736 },
-        { "um13.9": 1829 }
+        { "um13.9": 1829 },
+        { "git_migration": 1829 }
       ]
     }
   ]