Revert "Removed brew install instructions"
Revert "Removed brew install instructions"

I know how to release a new brew formula so it won't fall out of date

begriffs/postgrest,steve-chavez/postgrest,diogob/postgrest,league/postgrest,ruslantalpa/postgrest,steve-chavez/postgrest,Skyfold/postgrest,NotBrianZach/postgrest,motiz88/postgrest