Update CHANGES.rst

Author: wlach

CHANGES.rst

@@ -33,7 +33,9 @@ Features added
 Bugs fixed
 ----------
 
-* #11959: Fix multiple term matching when word appears in both title and document.
+* #11961: HTML Search: Fix duplicated search results.
+  Patch by Will Lachance.
+* #11959: HTML Search: Fix multiple term matching when word appears in both title and document.
   Patch by Will Lachance.
 * #11958: HTML Search: Fix partial matches overwriting full matches.
   Patch by William Lachance.