Add link to OTLP docs from advanced topics overview

Author: felixbarny

manage-data/data-store/data-streams/advanced-topics-tsds.md

@@ -12,4 +12,5 @@ products:
 This section contains information about advanced concepts and operations for [time series data streams](/manage-data/data-store/data-streams/time-series-data-stream-tsds.md):
 
 - [](/manage-data/data-store/data-streams/time-bound-tsds.md)
-- [](/manage-data/data-store/data-streams/reindex-tsds.md)
+- [](/manage-data/data-store/data-streams/reindex-tsds.md)
+- [](/manage-data/data-store/data-streams/tsds-ingest-otlp.md)