Updated documentation website for develop branch and added Rob to contributors list.
Updated documentation website for develop branch and added Rob to
contributors list.

AndrewCarterUK/Slim,Sam-Burns/Slim,feryardiant/slim,akrabat/Slim,JoeBengalen/Slim,foxyantho/Slim,jaapverloop/Slim,somjit2514/basic,iinux/Slim,slimphp/Slim,dopesong/Slim,iinux/Slim,samsonasik/Slim,RealSelf/Slim,opengeek/Slim,juliangut/Slim,designermonkey/Slim,mnapoli/Slim,iinux/Slim