Update runtime files
diff --git a/runtime/doc/help.txt b/runtime/doc/help.txt
index d1af85e..e4e25ab 100644
--- a/runtime/doc/help.txt
+++ b/runtime/doc/help.txt
@@ -1,4 +1,4 @@
-*help.txt* For Vim version 9.0. Last change: 2022 May 13
+*help.txt* For Vim version 9.0. Last change: 2022 Dec 03
VIM - main help file
k
@@ -153,6 +153,7 @@
|terminal.txt| Terminal window support
|popup.txt| popup window support
|vim9.txt| using Vim9 script
+|vim9class.txt| using Vim9 script classes
Programming language support ~
|indent.txt| automatic indenting for C and other languages