Introduced C2 documentation

Change-Id: Icc257c6865052768f31696a0fa956c3a2855819e
diff --git a/Changes b/Changes
index 6c64d82..d501d7e 100755
--- a/Changes
+++ b/Changes
@@ -6,6 +6,7 @@
           favor of 'cq' (#92).
         - Update API for statistics.
         - Introduced documentation on CQL (margaretha).
+        - Introduced documentation on Cosmas 2.
 
 0.34 2019-06-26
         - Introduced guided tour (hebasta, #19).