Directions on Visiting page are out of date

[lizzard]

On https://doubleunion.org/visit/ it says,

It’s about 3/4 mile from the Powell BART station and 1 3/4 mile from the 4th & King Caltrain station.

Replace that with something like:

It's .8 miles walk from 16th and Mission BART and .6 miles from 18th and Mission. From Caltrain, it's an 18 minute ride from 22nd St. station. Note: 22nd St. Caltrain station is not wheelchair accessible.

[brittag]

Just merged this old PR to at least fix the station name: #155