* List all boards in top-level ToC
* Fix BeagleConnect headings and general clean-up

Resolves https://git.beagleboard.org/beagleboard/beaglebone-ai-64/-/issues/42

Minor index updates

See merge request !20

Fro original documentation visit: https://docs.beagleboard.io/edge_ai_apps/index.html

For separate forked github repo visit: https://git.beagleboard.org/docs/edge_ai_apps

Origianl content copied and convertet to rst from https://github.com/MarkAYoder/PRUCookbook, All credits to Author: Mark A. Yoder (Mark.A.Yoder@Rose-Hulman.edu)

Changed from bone-cook-book to beaglebone-cookbook

Updated images, links and code.

This partially resolves #8.

Thanks to Vedant and Krishna for the contribution. With this commit, all existing and new beagleboard.org software projects will now be added to Projects section.

Updated simpPRU Documentation

See merge request docs/docs.beagleboard.io!17