Update runtime files

runtime/ftplugin/scdoc.vim

@@ -0,0 +1,26 @@
+" scdoc filetype plugin
+" Maintainer: Gregory Anders <greg@gpanders.com>
+" Last Updated: 2021-08-04
+
+" Only do this when not done yet for this buffer
+if exists('b:did_ftplugin')
+    finish
+endif
+
+" Don't load another plugin for this buffer
+let b:did_ftplugin = 1
+
+setlocal comments=b:;
+setlocal commentstring=;%s
+setlocal formatoptions+=t
+setlocal noexpandtab
+setlocal shiftwidth=0
+setlocal softtabstop=0
+setlocal textwidth=80
+
+let b:undo_ftplugin = 'setl com< cms< fo< et< sw< sts< tw<'
+
+if has('conceal')
+    setlocal conceallevel=2
+    let b:undo_ftplugin .= ' cole<'
+endif