Farewell to Bram and dedicate upcoming Vim 9.1 to him (#12749)

* Dedicate upcoming Vim 9.1 to Bram

Also replace in a few more places Brams email address and mention new
maintainers.

* Remove Bram from any Maintainer role

* runtime: Align Header

* it's mailing list not mailinglist
diff --git a/README.txt b/README.txt
index ce3ed73..2c692f0 100644
--- a/README.txt
+++ b/README.txt
@@ -122,12 +122,12 @@
 lists to discuss them with Vim users and developers:
 	https://www.vim.org/maillist.php
 
-If nothing else works, report bugs directly:
-	Bram Moolenaar <Bram@vim.org>
+If nothing else works, report bugs directly to the vim-dev mailing list:
+	<vim-dev@vim.org>
 
 
 MAIN AUTHOR
 
-Send any other comments, patches, flowers and suggestions to:
+Send any other comments, patches, flowers and suggestions to the vim-dev mailing list:
 
-	Bram Moolenaar		E-mail:	Bram@vim.org
+	<vim-dev@vim.org>