Update changelog

Signed-off-by: Christian Wolf <github@christianwolf.email>

CHANGELOG.md

@@ -9,6 +9,8 @@
   [#1723](https://github.com/nextcloud/cookbook/pull/1723) @j0hannesr0th
 - Enhance recipe recalculation algorithm
   [#1723](https://github.com/nextcloud/cookbook/pull/1743) @j0hannesr0th
+- Add Android client to README
+  [#1767](https://github.com/nextcloud/cookbook/pull/1767) @lneugebauer
 
 ### Fixed
 - Fix translation string to not contain quotes