Added nmap with basic (-sV) configuration.

Squashed commit of the following:

commit 075aba1389b0afc9e117f40a930e0ee2b873983c
Author: Anže Žitnik <anze.zitnik@xlab.si>
Date:   Sat Mar 14 23:07:48 2020 +0100

    CI fix

commit 34a4087477d3d8b9d1b9cc7f2aaa3b08365303b1
Author: Anže Žitnik <anze.zitnik@xlab.si>
Date:   Sat Mar 14 23:01:52 2020 +0100

    CI fix

commit b61354066af06888e22c60f36fd1c2c384f3adff
Author: Anže Žitnik <anze.zitnik@xlab.si>
Date:   Sat Mar 14 22:55:01 2020 +0100

    Updated README

commit 69898a19399d762a8662b16bb9be74c0b421b11e
Author: Anže Žitnik <anze.zitnik@xlab.si>
Date:   Sat Mar 14 22:46:06 2020 +0100

    Adding nmap