Nice contribution;
You may want to update your guide to be more accurate to avoid confusion.

 Corrections:
 on v2.1.0.28
 
1. js --> dashboard --> Rigs --> RigCollection.js

 3. includes --> classes --> miners --> abstract.php

This file needs couple changes. First, scroll to line number 20, and you will find this:
Code:
protected $_rigStatus = 'offline';

includes --> classes --> miners --> cgminer.php
 Now go to line number 25, and will will find this piece of code:
 'status' => $this->_rigStatus,
 
 Go to line number 611, you will fined this code:
 
 Finally, go to line number 623. you will find the following code: