runtime(doc): Update options.txt

closes: #14295

Signed-off-by: Song-Tianxiang <149415622+Song-Tianxiang@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/doc/options.txt

@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.1.  Last change: 2024 Mar 11
+*options.txt*	For Vim version 9.1.  Last change: 2024 Mar 25
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -8106,7 +8106,7 @@ A jump table for the options with a short description can be found at |Q_op|.
 	appear wrong in many places, e.g., when printing it.
 	The value must be more than 0 and less than 10000.
 
-	There are four main ways to use tabs in Vim:
+	There are five main ways to use tabs in Vim:
 	1. Always keep 'tabstop' at 8, set 'softtabstop' and 'shiftwidth' to 4
 	   (or 3 or whatever you prefer) and use 'noexpandtab'.  Then Vim
 	   will use a mix of tabs and spaces, but typing <Tab> and <BS> will