runtime(doc): fix confusing docs for 'completeitemalign'

closes: #16743

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

Author: zeertzjq

runtime/doc/options.txt

@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.1.  Last change: 2025 Feb 16
+*options.txt*	For Vim version 9.1.  Last change: 2025 Feb 27
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -2107,10 +2107,10 @@ A jump table for the options with a short description can be found at |Q_op|.
 						*'completeitemalign'* *'cia'*
 'completeitemalign' 'cia' string (default: "abbr,kind,menu")
 			  global
-	A comma-separated list of |complete-items| that controls the alignment
-	and display order of items in the popup menu during Insert mode
-	completion. The supported values are abbr, kind, and menu. These
-	options allow to customize how the completion items are shown in the
+	A comma-separated list of strings that controls the alignment and
+	display order of items in the popup menu during Insert mode
+	completion.  The supported values are "abbr", "kind", and "menu".
+	These values allow customizing how |complete-items| are shown in the
 	popup menu.  Note: must always contain those three values in any
 	order.