minor documentation remarks and suggestions

[wJeZfAC]

First, thanks a lot for your work and keep it up!

in README.md

Installation:

1. Install 'qubes-tunnel' using apt-get or dnf in template, or download qubes-tunnel from github and copy to template:

add the code line how to install git / github on the template
git clone https://github.com/tasket/qubes-tunnel.git
qvm-copy qubes-tunnel

3. If you downloaded the github project, open a template shell then:

cd qubes-tunnel
should be
cd qubes-tunnel-master

in vpn.md
the remark:

In Qubes R4.0, an AppVM that 'provides networking' takes the place of ProxyVM, although they function in the same roles. Here the term 'ProxyVM' will be used to refer to both this type of R4.0 qube as well as its R3.2 counterpart.

should be on the beginning of the ProxyVM chapter

image links are broken:
Set up a ProxyVM as a VPN gateway using NetworkManager
Create_New_VM.png
Settings_services.png
Setting_NetVM.png
feel free to reuse my screenshots

Set up a ProxyVM as a VPN gateway using the qubes-tunnel service
3. Test your client configuration!

please add more information / explanation on the code lines
sudo openvpn --cd /rw/config/qtunnel --config qtunnel.conf --verb 3
ping 8.8.8.8
adding
traceroot 8.8.8.8
as additional test