Update recent changes table.

Author: tonykgill

pasturekey.md

@@ -44,6 +44,7 @@ When using these endpoints for a device, specify the device ID
 
 Date | Change | endpoints
 ---- | ------ | --------
+2026-03-18 | Added sub-paddock statistics workflow | /subpaddock, /subpaddockstatus
 2026-02-27 | Added /getterritory endpoint | /getterritory
 2026-02-13 | Added centroid attribute to features properties | /geom, /snapshot
 2026-02-13 | Improved response times of the /snapshot endpoint, especially for large properties | /snapshot