readme: instructions for lighthouse on mobile devices (#645)
readme: instructions for lighthouse on mobile devices (#645)


deepanjanroy/lighthouse,deepanjanroy/lighthouse,mixed/lighthouse,cedricbellet/lighthouse,deepanjanroy/lighthouse,arturmiz/lighthouse,tkadlec/lighthouse,ev1stensberg/lighthouse,umaar/lighthouse,wardpeet/lighthouse,umaar/lighthouse,arturmiz/lighthouse,mixed/lighthouse,arturmiz/lighthouse,GoogleChrome/lighthouse,arturmiz/lighthouse,ev1stensberg/lighthouse,wardpeet/lighthouse,mixed/lighthouse,umaar/lighthouse,GoogleChrome/lighthouse,tommycli/lighthouse,tommycli/lighthouse,wardpeet/lighthouse,deepanjanroy/lighthouse,cedricbellet/lighthouse,tkadlec/lighthouse,tkadlec/lighthouse,GoogleChrome/lighthouse,umaar/lighthouse,wardpeet/lighthouse,ev1stensberg/lighthouse,ev1stensberg/lighthouse,cedricbellet/lighthouse,wardpeet/lighthouse,tommycli/lighthouse,cedricbellet/lighthouse,tkadlec/lighthouse,mixed/lighthouse,deepanjanroy/lighthouse,GoogleChrome/lighthouse,GoogleChrome/lighthouse,cedricbellet/lighthouse,tommycli/lighthouse,arturmiz/lighthouse,tommycli/lighthouse