Update Inline Documentation

[Steve Rudolfi]

For example, the text here needs to include mega-nav, and also the url links to the old combined wiki repo.

responsive-child-starter/functions.php

Lines 23 to 33 in f3e5d0e

 /** 
  * Specifies the responsive layout for the theme. Disables the option in the 
  * Customizer. 
  * 
  * Removing this allows the layout to be changed in the Customizer. 
  * 
  * Available values: `default`, `top-nav`, `side-nav`, `no-nav`. 
  * 
  * @link https://github.com/bu-ist/responsive-framework-documentation/blob/2x-documentation/code-examples/Changing-Available-Layouts-And-Default-Layout.md 
  */ 
 define( 'BU_RESPONSIVE_LAYOUT', 'default' ); 

Maybe a good tiny-task? Audit the whole 2x repo for updates & changes?