Added a comment to prevent people from manually updating the changelog

wouterj · web-flow · commit 6958b7c13dcf · 2016-11-11T12:15:55.000+01:00
diff --git a/changelog.rst b/changelog.rst
@@ -1,5 +1,9 @@
 .. index::
     single: CHANGELOG
+    
+.. !! CAUTION !!
+   This file is automatically generated each month. Do not add new changelog
+   items when preparing a pull requests.
 
 The Documentation Changelog
 ===========================
