doc: add the way to avoid permission problem

work around for permission error in fedora.
temporary fix #163.

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
README: fix fedora permission, add restart libvirtd

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
README: consult home directory permission check

- add Arch for mention
- Promote permission change for solution

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
Merge pull request #171 from miurahr/notify_fedora_problem

doc: add the way to avoid permission problem