runtime(doc): clarify the use of change marks when writing a buffer

related: #17008

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/change.txt b/runtime/doc/change.txt
index c656a11..24137c7 100644
--- a/runtime/doc/change.txt
+++ b/runtime/doc/change.txt
@@ -1,4 +1,4 @@
-*change.txt*    For Vim version 9.1.  Last change: 2025 Mar 18
+*change.txt*    For Vim version 9.1.  Last change: 2025 Apr 03
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -156,8 +156,8 @@
 The 'B' and 'M' flags in 'formatoptions' change the behavior for inserting
 spaces before and after a multibyte character |fo-table|.
 
-The '[ mark is set at the end of the first line that was joined, '] at the end
-of the resulting line.
+The |'[| mark is set at the end of the first line that was joined, |']| at the
+end of the resulting line.
 
 
 ==============================================================================
@@ -1188,8 +1188,8 @@
 exchange two characters with the command sequence "xp".  You can exchange two
 lines with the command sequence "ddp".  You can exchange two words with the
 command sequence "deep" (start with the cursor in the blank space before the
-first word).  You can use the "']" or "`]" command after the put command to
-move the cursor to the end of the inserted text, or use "'[" or "`[" to move
+first word).  You can use the |']| or |`]| command after the put command to
+move the cursor to the end of the inserted text, or use |'[| or |`[| to move
 the cursor to the start.
 
 						*put-Visual-mode* *v_p* *v_P*