Update runtime files
diff --git a/runtime/ftplugin/corn.vim b/runtime/ftplugin/corn.vim
new file mode 100644
index 0000000..2259442
--- /dev/null
+++ b/runtime/ftplugin/corn.vim
@@ -0,0 +1,18 @@
+" Vim filetype plugin
+" Language: Corn
+" Original Author: Jake Stanger (mail@jstanger.dev)
+" License: MIT
+" Last Change: 2023 May 28
+
+if exists('b:did_ftplugin')
+ finish
+endif
+let b:did_ftplugin = 1
+
+setlocal formatoptions-=t
+
+" Set comment (formatting) related options.
+setlocal commentstring=//\ %s comments=://
+
+" Let Vim know how to disable the plug-in.
+let b:undo_ftplugin = 'setlocal commentstring< comments< formatoptions<'