Update runtime files
diff --git a/runtime/doc/help.txt b/runtime/doc/help.txt
index db803ef..d1af85e 100644
--- a/runtime/doc/help.txt
+++ b/runtime/doc/help.txt
@@ -161,6 +161,8 @@
|filetype.txt| settings done specifically for a type of file
|quickfix.txt| commands for a quick edit-compile-fix cycle
|ft_ada.txt| Ada (the programming language) support
+|ft_context.txt| Filetype plugin for ConTeXt
+|ft_mp.txt| Filetype plugin for METAFONT and MetaPost
|ft_ps1.txt| Filetype plugin for Windows PowerShell
|ft_raku.txt| Filetype plugin for Raku
|ft_rust.txt| Filetype plugin for Rust