runtime(helptoc): the helptoc package can be improved

Adds the following changes:
- New Maintainer: Pete Kenny
- New filetypes supported (asciidoc, html, tex, vim, xhtml)
- improved Markdown support
- Sanitised ToCs and popup presentation
- Configuration improvements and options
- Add helptoc.txt help file

closes: #17255

Signed-off-by: Peter Kenny <github.com@k1w1.cyou>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/Filelist b/Filelist
index a7a937c..17ec8df 100644
--- a/Filelist
+++ b/Filelist
@@ -808,6 +808,8 @@
 		runtime/pack/dist/opt/editorconfig/ftdetect/editorconfig.vim \
 		runtime/pack/dist/opt/editorconfig/plugin/editorconfig.vim \
 		runtime/pack/dist/opt/helptoc/autoload/helptoc.vim \
+		runtime/pack/dist/opt/helptoc/doc/helptoc.txt \
+		runtime/pack/dist/opt/helptoc/doc/tags \
 		runtime/pack/dist/opt/helptoc/plugin/helptoc.vim \
 		runtime/pack/dist/opt/hlyank/plugin/hlyank.vim \
 		runtime/pack/dist/opt/justify/plugin/justify.vim \