Update download link in Getting Started
Update download link in Getting Started

Update the download link in Getting Started to explicitly point to the 1.0.0 release rather than the latest off of master.
paladin74/Office-UI-Fabric,andrewconnell/Office-UI-Fabric,dimkk/Office-UI-Fabric,jerrysdesign/Office-UI-Fabric,robi26/Office-UI-Fabric,paladin74/Office-UI-Fabric,dimkk/Office-UI-Fabric,jjj117/Office-UI-Fabric,andrewconnell/Office-UI-Fabric,openbizgit/Office-UI-Fabric,waldekmastykarz/Office-UI-Fabric,EphraimB/Office-UI-Fabric,zhaoqunhe/Office-UI-Fabric,waldekmastykarz/Office-UI-Fabric,EphraimB/Office-UI-Fabric,rajendra1809/Office-UI-Fabric,jerrysdesign/Office-UI-Fabric,zhaoqunhe/Office-UI-Fabric,openbizgit/Office-UI-Fabric,ygbhf/Office-UI-Fabric,robi26/Office-UI-Fabric,rajendra1809/Office-UI-Fabric,kissstudio/Office-UI-Fabric,OfficeDev/Office-UI-Fabric,zkoehne/Office-UI-Fabric,zkoehne/Office-UI-Fabric,jjj117/Office-UI-Fabric,AvenChoi/Office-UI-Fabric,OfficeDev/Office-UI-Fabric,AvenChoi/Office-UI-Fabric,ygbhf/Office-UI-Fabric,kissstudio/Office-UI-Fabric