Restart journald command

Need to use `sudo apt` if not root user. proceeding 2 lines already incorporate `sudo` commands so for consistency these lines should be `sudo` too.

- Move "Is it working?" section to after "Install"
- Adjust "Is it working?" a bit, mention "systemctl status"
- Wording
- Add Troubleshooting section with journal cleanup tips

fix #135

> Closes #84
> Closes #77

Yeah !

fix for #92 , bad fuzzy parameter

typo #82, improvement #81

I add timeout. In case of failure, logram will not freeze the OS startup.

Linked to the #30 error

#46

Suggestion from #46

minor improvements to the readme

The init is useless and the mount was async.

As asked into #23 #21

It's maybe the pb of #17

Don't need the section "before" anymore.
Upgrade the license to a valid one.