NordVPN Installation

Newbie needs help. I currently have LEDE 17.01 4. It's a fresh install and has no Internet either ethernet or wireless. I'm trying to install NordVPN ( Looking for step by step instructions on how to install this file within the router running LEDE. Any help would greatly be appreciated.

fwiw, this old thread might be useful:

See OpenVPN Client

If you use the search function of the forum, you will find more discussions around NordVPN.