Update runtime files
diff --git a/runtime/ftplugin/ssa.vim b/runtime/ftplugin/ssa.vim
new file mode 100644
index 0000000..04cc7a9
--- /dev/null
+++ b/runtime/ftplugin/ssa.vim
@@ -0,0 +1,13 @@
+" Vim filetype plugin
+" Language:	SubStation Alpha
+" Maintainer:	ObserverOfTime <chronobserver@disroot.org>
+" Last Change:	2022 Oct 10
+
+if exists('b:did_ftplugin')
+  finish
+endif
+let b:did_ftplugin = 1
+
+setlocal comments=:;,:!: commentstring=;\ %s
+
+let b:undo_ftplugin = 'setl com< cms<'