Update modules/ROOT/pages/7.6.1-release-notes.adoc

Author: abhinavgandham

modules/ROOT/pages/7.6.1-release-notes.adoc

@@ -123,6 +123,7 @@ The {productname} {release-version} release includes an accompanying release of
 **Image Optimizer** includes the following fixes.
 
 ==== Images with existing `srcset` were not handled correctly.
+// #TINY-11653
 
 An issue was identified where images with an existing `srcset` attribute containing an Uploadcare URL were being processed incorrectly.