especially:
- filesystem -> file system
- mountpoint -> mount point
- lxc -> LXC
- pve -> PVE
- it's -> its (where appropriate)
- VM´s -> VMs (and similar)
- Ressource -> Resource
- maximal -> maximum or at most
- format of section headers and block headers
reformat most existing 'text' as either `text` or ``text''
reformat most existing "text" as either ``text'' or `text`
reformat 'x' as `x`
harmonize bullet list syntax to use '*' instead of '-'