There is an open bug in tmpfs that results in permissions being reset on container restart. At this point it has tripped up quite a few people. This adds a hint about the issue, and a link to a the workaround we ultimately used (a functionality not mentioned elsewhere in the docs).
* Update "Mounts" example
In the original example, the "Mounts" field returned by `docker container inspect [CONTAINER]` was not shown. This may be too much data, but we should at least show the "Mounts" field so folks know what to look for.
* shortened the docker inspect example
Co-authored-by: David Karlsson <david.karlsson@docker.com>