There were several differen spellings. I went for i.MX6 and i.MX8
(with no space in front of the number)

Adding location for various board setups and full imx6 instructions based on internal wiki

See merge request Librem5/developer.puri.sm!1

Updating code repo location and fixing a title

See merge request Librem5/developer.puri.sm!3

The designers will come up with concrete examples in the future.

now that we moved away from wlroots-hacks

* use headlines
* add to index
* use https

Adding additional .. index:: entries in the document is left as
an exercise to the reader.

The files are not the master file and the toctree directive should
better not be used in these.