Improve install docs
Improve install docs

chirilo/mozillians,glogiotatidis/mozillians-new,hoosteeno/mozillians,satdav/mozillians,akatsoulas/mozillians,chirilo/mozillians,mozilla/mozillians,akatsoulas/mozillians,hoosteeno/mozillians,akarki15/mozillians,chirilo/mozillians,akarki15/mozillians,akatsoulas/mozillians,glogiotatidis/mozillians-new,fxa90id/mozillians,fxa90id/mozillians,satdav/mozillians,chirilo/mozillians,anistark/mozillians,johngian/mozillians,justinpotts/mozillians,safwanrahman/mozillians,mozilla/mozillians,glogiotatidis/mozillians-new,safwanrahman/mozillians,hoosteeno/mozillians,johngian/mozillians,mozilla/mozillians,johngian/mozillians,brian-yang/mozillians,satdav/mozillians,hoosteeno/mozillians,anistark/mozillians,brian-yang/mozillians,anistark/mozillians,brian-yang/mozillians,ChristineLaMuse/mozillians,justinpotts/mozillians,fxa90id/mozillians,brian-yang/mozillians,johngian/mozillians,ChristineLaMuse/mozillians,satdav/mozillians,akatsoulas/mozillians,justinpotts/mozillians,mozilla/mozillians,anistark/mozillians,fxa90id/mozillians,ChristineLaMuse/mozillians,safwanrahman/mozillians,justinpotts/mozillians,glogiotatidis/mozillians-new,safwanrahman/mozillians,akarki15/mozillians,akarki15/mozillians