runtime(doc): include some vim9 script examples in the help

closes: #14848

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index 7a49aa0..68e5d99 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1,4 +1,4 @@
-*vim9.txt*	For Vim version 9.1.  Last change: 2024 Apr 13
+*vim9.txt*	For Vim version 9.1.  Last change: 2024 May 31
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -67,6 +67,7 @@
 		Note that {cmd} cannot use local variables, since it is parsed
 		with legacy expression syntax.
 
+See some examples of Vim9 script at |52.6|.
 ==============================================================================
 
 2. Differences from legacy Vim script			*vim9-differences*