[S2GRAPH-246] Integration of documents into the S2Graph project

JIRA:
  [S2GRAPH-246] https://issues.apache.org/jira/browse/S2GRAPH-246

Pull Request:
  Closes #189

Author
  daewon <daewon@apache.org>
diff --git a/CHANGES b/CHANGES
index 1d29242..bb7f512 100644
--- a/CHANGES
+++ b/CHANGES
@@ -110,6 +110,7 @@
     * [S2GRAPH-212] - Fix broken markdown on README.md.
     * [S2GRAPH-229] - 'Step' abstraction for combinable queries
     * [S2GRAPH-245] - Remove install hbase step on travis CI.
+    * [S2GRAPH-246] - Integration of documents into the S2Graph project.
 
 Release 0.1.0 - Released