The hedgedoc image stores the software in `/hedgedoc` and therefore the
container fails while trying to mount the tempfs. This patch fixes the
problem by renaming the path properly.
This patch is the first version of the CodiMD role that runs the new
hedgedoc image. There will be further work to rework the role to be
called hedgedoc including a renaming of all variables.
This patch reduces the permissions on the install directory to just the root user and also fixes the ansible-lint issue for specifying the `mode`.
For all container mounted volumes, the ansible-lint rule is disabled, as codimd takes care of the permissions etc.
