docs(readme): add Exthouse to related projects (#9243)
docs(readme): add Exthouse to related projects (#9243)


umaar/lighthouse,wardpeet/lighthouse,GoogleChrome/lighthouse,umaar/lighthouse,wardpeet/lighthouse,wardpeet/lighthouse,ev1stensberg/lighthouse,GoogleChrome/lighthouse,GoogleChrome/lighthouse,umaar/lighthouse,umaar/lighthouse,wardpeet/lighthouse,wardpeet/lighthouse,ev1stensberg/lighthouse,ev1stensberg/lighthouse,GoogleChrome/lighthouse,ev1stensberg/lighthouse,GoogleChrome/lighthouse