DOC: changelog for PR#1666

Author: Sebastian Wagner

CHANGELOG.md

@@ -69,6 +69,7 @@ CHANGELOG
   - Added `api_token` parameter. (PR#1524 by Filip Pokorný)
   - The script `update-rfiprisk-data` is now deprecated and will be removed in version 3.0.
 - Added `intelmq.bots.experts.threshold` (PR#1608 by Karl-Johan Karlsson).
+- Added `intelmq.bots.experts.splunk_saved_search.expert` (PR#1666 by Karl-Johan Karlsson).
 
 #### Outputs
 - `intelmq.bots.outputs.rt`: Added Request Tracker output bot (PR#1589 by Marius Urkis).