runtime(doc): Tweak documentation style a bit

closes: #16164

Signed-off-by: h-east <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/terminal.txt b/runtime/doc/terminal.txt
index a0bfd60..da5b148 100644
--- a/runtime/doc/terminal.txt
+++ b/runtime/doc/terminal.txt
@@ -1,4 +1,4 @@
-*terminal.txt*	For Vim version 9.1.  Last change: 2024 Nov 23
+*terminal.txt*	For Vim version 9.1.  Last change: 2024 Dec 03
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -1759,8 +1759,8 @@
 For this reason, you can set: >
     let g:termdebug_config['debug'] = true
 <
-This sets the `DEBUG` variable to `true` in the source code that you can use
-within the source code. An example of its usage follows: >
+This sets the `DEBUG` variable to `true`, which can be referenced in the
+source code.  An example of its usage follows: >
     if exists('g:termdebug_loaded')
       if DEBUG
 	Echoerr('Termdebug already loaded.')