S.F. offices can reopen with city's move to yellow tier

San Francisco workers can start heading back to the office.  By the end of the month, the city will allow nonessential offices to open for the first time since March, expand indoor capacity for gyms and theaters, and by early next month, indoor dining. San Francisco Mayor London Breed and public health officials shared a new timeline today for rolling back a range of local restrictions following the county's move to the yellow "minimal" Covid-19 tier on the state watchlist. San Francisco is…