* add docs about navigation bar for Custom Language Support topic
* add info in `topics/intro/content_updates.md`
* renumber articles after the added tutorial
* add `custom_language_tutorial_header` to `structure_aware_navbar.md`
* [webhelp] Fixes for TXP00152, TXP00002, test build 27 Jul 22:26
* [webhelp] Fixes for Part #4 TXP00010, EXCEPT decimal numbers in section titles
* [webhelp] Fixes for Part #5 TXP00017
* [webhelp] Fixes for Part #4 TXP00010 - removed numbers from page section titles in "Custom Language Support Tutorial" and "Testing a Custom Language Plugin".
* [webhelp] Removed numbers from page section titles in rest of project *.md files.
* [new webhelp] Build #44 changes
* [new webhelp] Maintenance merge from master
* [new webhelp] Add placeholder file for webhelp import.
* [webhelp] Correct redirects for file name changes
* [webhelp] TOC not needed in webhelp
* [format] {:toc} not needed for webhelp
* add {:disable-links} to ensure demo links are not interpreted as real links.
* Put all badges on the same line to simplify composition.
* formatter.md: fix upsource link
* fix some links
* api_changes_list.md: remove note
* migrate to webhelp - initial
* fix GH edit URL
* remove sdkdocs-template setup in VCS config
* remove recently_updated.md
* restore COC/CONTRIBUTING.md
* api_changes_list.md: remove note
* useful_links.md: IPE
Co-authored-by: JohnHake <john.hake@jetbrains.com>
Co-authored-by: Yann Cébron <yann.cebron@jetbrains.com>
