Update runtime files
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 0a3e319..17d4b85 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1,4 +1,4 @@
-*syntax.txt* For Vim version 9.0. Last change: 2022 Nov 06
+*syntax.txt* For Vim version 9.0. Last change: 2022 Nov 15
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1888,6 +1888,16 @@
Now you just need to make sure that you add all regions that contain
the preprocessor language to the cluster htmlPreproc.
+ *html-folding*
+The HTML syntax file provides syntax |folding| (see |:syn-fold|) between start
+and end tags. This can be turned on by >
+
+ :let g:html_syntax_folding = 1
+ :set foldmethod=syntax
+
+Note: Syntax folding might slow down syntax highlighting significantly,
+especially for large files.
+
HTML/OS (by Aestiva) *htmlos.vim* *ft-htmlos-syntax*
@@ -5394,8 +5404,8 @@
MatchParen Character under the cursor or just before it, if it
is a paired bracket, and its match. |pi_paren.txt|
*hl-MessageWindow*
-MessageWindow Messages popup window used when 'cmdheight' is zero. If not
- defined |hl-WarningMsg| is used.
+MessageWindow Messages popup window used by `:echowindow`. If not defined
+ |hl-WarningMsg| is used.
*hl-ModeMsg*
ModeMsg 'showmode' message (e.g., "-- INSERT --").
*hl-MoreMsg*