made the pack completely portable and wrote relevent bat files to go with it

gitportable/usr/share/vim/vim91/indent/xhtml.vim

@@ -0,0 +1,13 @@
+" Vim indent file
+" Language:	XHTML
+" Maintainer:	The Vim Project <https://github.com/vim/vim>
+" Last Change:	2023 Aug 10
+" Former Maintainer:	Bram Moolenaar <Bram@vim.org>
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+  finish
+endif
+
+" Handled like HTML for now.
+runtime! indent/html.vim