diff --git a/runtime/doc/helphelp.txt b/runtime/doc/helphelp.txt
index 948ef72..5ab112d 100644
--- a/runtime/doc/helphelp.txt
+++ b/runtime/doc/helphelp.txt
@@ -1,4 +1,4 @@
-*helphelp.txt*	For Vim version 9.1.  Last change: 2024 Dec 15
+*helphelp.txt*	For Vim version 9.1.  Last change: 2024 Dec 25
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -433,17 +433,38 @@
 at the end of the line before the block and a less than (<) character as the
 first non-blank on a line following the block.  Any line starting in column 1
 also implicitly stops the block of ex-commands before it.  E.g. >
-    function Example_Func()
-	echo "Example"
-    endfunction
+	function Example_Func()
+	  echo "Example"
+	endfunction
 <
-It's possible to add Vim syntax highlighting support to code examples.  This
-can be done by adding "vim" after the greater than (>) character (">vim").
+
+To add annotation in the block, place the annotation (ex: "lua") after a
+greater than (>) character.  E.g: >lua
+	print("hello")
+<
+Note: uses lua syntax highlighting, if "lua" key is in
+|g:help_example_languages|.
+
+It's possible to add Vim syntax highlighting support to code examples.
 E.g: >vim
-    function Example_Func()
-	echo "Example"
-    endfunction
+	function Example_Func()
+	  echo "Example"
+	endfunction
 <
+						*g:help_example_languages*
+If you want to change the syntax highlighting in the block, you can
+change it like this: >
+	:let g:help_example_languages = #{ vim: 'vim', sh: 'bash' }
+The key represents the annotation marker name, and the value is the 'syntax'
+name.  By default, help files support only Vim script highlighting.
+Note: When setting "g:help_example_languages", if you do not include "vim"
+key, the Vim syntax highlighting will not be enabled. If you set it to an
+empty value, syntax highlighting for embedded languages will be disabled.
+
+Further note: including additional syntax languages into help files may not
+always work perfectly, if the included 'syntax' script does not account for
+such an import.
+						*help-notation*
 The following are highlighted differently in a Vim help file:
   - a special key name expressed either in <> notation as in <PageDown>, or
     as a Ctrl character as in CTRL-X