* added a table of content
* wide layout for docs, styles for the table of content
* fixes for docs layout
* wide footer at the docs section
* added support for nested docs, added toggling groups of links, delimiters, external links
* external link icon
* added active state for nested links, styles for the external link icon
* styles fix
* remove doc sync
* update directory structure and doc titles
* fix outstanding links
* fix more links for merge
* Revert "fix more links for merge"
This reverts commit 46c9ccaf1b7765f2cda8dc85d625fa6b4e3f5436.
* Revert "fix outstanding links"
This reverts commit 28e6380b74f1ab74690c8184551f186656d6d4e9.
* fix remaining broken links
* move how-to tutorials in the different page
* split tutorials
* fix link
* upd github edit link
* skip empty index pages
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Co-authored-by: Andrey Vasnetsov <andrey@vasnetsov.com>
Co-authored-by: David Sertic <62056091+davidmyriel@users.noreply.github.com>
George Panchuk