Fix typo.

CHANGELOG.md

@@ -7,7 +7,7 @@ This release adds the following new features:
 
 and fixes the following bugs:
 
-- Revert [Sandstorm API changes](https://github.com/wekan/wekan/commit/be03a191c4321c2f80116c0ee1ae6c826d882535
+- Revert [Sandstorm API changes](https://github.com/wekan/wekan/commit/be03a191c4321c2f80116c0ee1ae6c826d882535)
   that were done at [Wekan v2.05](https://github.com/wekan/wekan/blob/devel/CHANGELOG.md#v205-2019-01-27-wekan-release)
   to fix #2143. Thanks to pantraining and xet7.