runtime(doc): update WinScrolled documentation

closes: #17036

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/autocmd.txt b/runtime/doc/autocmd.txt
index 820c302..b9b76ff 100644
--- a/runtime/doc/autocmd.txt
+++ b/runtime/doc/autocmd.txt
@@ -1,4 +1,4 @@
-*autocmd.txt*   For Vim version 9.1.  Last change: 2025 Apr 03
+*autocmd.txt*   For Vim version 9.1.  Last change: 2025 Apr 04
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -1481,6 +1481,13 @@
 				or changed width or height.  See
 				|win-scrolled-resized|.
 
+				Note: This can not be skipped with
+				`:noautocmd`, because it triggers after
+				processing normal commands when Vim is back in
+				the main loop.  If you want to disable this,
+				consider setting the 'eventignore' option
+				instead.
+
 				The pattern is matched against the |window-ID|
 				of the first window that scrolled or resized.
 				Both <amatch> and <afile> are set to the