Merge branch 'main' of git.beagleboard.org:lorforlinux/docs.beagleboard.io; branch 'main' of git.beagleboard.org:docs/docs.beagleboard.io

Reorganization

See merge request !21

Fix PDF and version links

See merge request !22

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

Minor index updates

See merge request docs/docs.beagleboard.io!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