Update changelog

Author: Pietro Albini

docs/changelog.rst

@@ -9,6 +9,19 @@ botogram changelog
 
 Here you can see what changed in every botogram release.
 
+.. _changelog-0.1.1:
+
+botogram 0.1.1
+==============
+
+*Bugfix release, not yet released*
+
+* Fix automatic syntax detector not working sometimes (`issue 26`_)
+* Fix "unknown command" message not showing up in private chats (`issue 25`_)
+
+.. _issue 25: https://github.com/pietroalbini/botogram/issues/25
+.. _issue 26: https://github.com/pietroalbini/botogram/issues/26
+
 .. _changelog-0.1:
 
 botogram 0.1