docs: Add a changelog.md (#2986)
docs: Add a changelog.md (#2986)


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