How to Install Copay desktop wallet in Ubuntu? Could someone publish a step by step instructions to install, in a simple way, the Bitcoin desktop wallet Copay?

I have read the "instructions" published in their Github account and believe me, it's not user friendly:


  Desktop versions (Windows, OS X, Linux)
  
  Copay uses NW.js (also know as node-webkit) for its desktop version.
  NW.js is an app runtime based on Chromium and node.js.
  
  -Install NW.js on your system from nwjs.io
  -Run grunt desktop


Thank you.
These are not instructions to install it. These instructions are for building Copay on your system.

Here are the instructions for end-users (non-developers):


  1) Download the latest binary


You should visit its Copay releases page on GitHub and choose the ZIP file for Linux.


After you download it, unzip it and make sure you moved its folder to somewhere you won't forget. 


  2) Run it


Open the Linux Terminal (Press Ctrl + Alt + T to open Terminal if you're on Linux Mint or Ubuntu)

Open Copay's folder (which you just unzipped and moved).

There should be ~ 20 files and folders in that folder.

Find the file named "Copay" (without quotes and its icon may look like a document), drag that file onto Terminal and press Enter.

Now its GUI should open. Please note that you have to do Step 2 everytime you want to run it.