runtime(doc): documentation updates

This is a collection of various improvements to the help pages

closes #12790

Co-authored-by: Houl <anwoku@yahoo.de>
Co-authored-by: Doug Kearns <dougkearns@gmail.com>
Co-authored-by: Adri Verhoef <a3@a3.xs4all.nl>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/intro.txt b/runtime/doc/intro.txt
index 7b66303..b19c306 100644
--- a/runtime/doc/intro.txt
+++ b/runtime/doc/intro.txt
@@ -1,4 +1,4 @@
-*intro.txt*     For Vim version 9.0.  Last change: 2023 Aug 09
+*intro.txt*     For Vim version 9.0.  Last change: 2023 Aug 15
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -215,7 +215,7 @@
 	Eric Fischer		Mac port, 'cindent', and other improvements
 	Benji Fisher		Answering lots of user questions
 	Bill Foster		Athena GUI port (later removed)
-	Google			Lets me work on Vim one day a week
+	Google			Let Bram work on Vim one day a week
 	Loic Grenie		xvim (ideas for multi windows version)
 	Sven Guckes		Vim promoter and previous WWW page maintainer |Sven-Guckes|
 	Darren Hiebert		Exuberant ctags