Update changelog

(cherry picked from commit 1f9c3447)

CHANGELOG.rst

@@ -15,6 +15,11 @@ Added
 * Add script for moving all Chronos dates to the current (school) year (only for testing purposes).
 * Add demo data as Untis dump (also only for testing purposes).
 
+Fixed
+~~~~~
+
+* Management commands were run in Celery, not in the local console.
+
 `2.0rc3`_ - 2021-09-30
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