fix: added volumes root for mkdocs docker
when installing homelabos to a custom location (ie: not /var/homelabos), mkdocs was trying to go to /var/homelabos. Now points to volume root.
when installing homelabos to a custom location (ie: not /var/homelabos), mkdocs was trying to go to /var/homelabos. Now points to volume root.