runtime(doc): make examples verbatim to prevent conceal/tag parsing

closes: #17437

Signed-off-by: Yochem van Rosmalen <git@yochem.nl>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/usr_22.txt b/runtime/doc/usr_22.txt
index 0220893..c6bc5d2 100644
--- a/runtime/doc/usr_22.txt
+++ b/runtime/doc/usr_22.txt
@@ -1,4 +1,4 @@
-*usr_22.txt*	For Vim version 9.1.  Last change: 2024 Oct 05
+*usr_22.txt*	For Vim version 9.1.  Last change: 2025 Jun 03
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
@@ -27,23 +27,23 @@
 	:edit .
 
 Through the magic of autocommands and Vim scripts, the window will be filled
-with the contents of the directory.  It looks like this:
+with the contents of the directory.  It looks like this: >
 
-" ============================================================================ ~
-" Netrw Directory Listing                                        (netrw v109) ~
-"   Sorted by      name ~
-"   Sort sequence: [\/]$,\.h$,\.c$,\.cpp$,*,\.info$,\.swp$,\.o$\.obj$,\.bak$ ~
-"   Quick Help: <F1>:help  -:go up dir  D:delete  R:rename  s:sort-by  x:exec ~
-" ============================================================================ ~
-../ ~
-./ ~
-check/ ~
-Makefile ~
-autocmd.txt ~
-change.txt ~
-eval.txt ~
-filetype.txt ~
-help.txt.info ~
+  " ===========================================================================
+  " Netrw Directory Listing                                        (netrw v109)
+  "   Sorted by      name
+  "   Sort sequence: [\/]$,\.h$,\.c$,\.cpp$,*,\.info$,\.swp$,\.o$\.obj$,\.bak$
+  "   Quick Help: <F1>:help  -:go up dir  D:delete  R:rename  s:sort-by  x:exec
+  " ===========================================================================
+  ../
+  ./
+  check/
+  Makefile
+  autocmd.txt
+  change.txt
+  eval.txt
+  filetype.txt
+  help.txt.info
 
 You can see these items: