Add (scheduled?) blurb to homepage about Election Day and where to vote

[kelshew]

Election Day is Tuesday, November, 6, 2018! Find your polling location here:
https://dcboe.org/Voters/Where-to-Vote/Find-Polling-Place

The deadline for registering to vote online or by mail has passed, but you can still register to vote in person. DC does allow same day registration, so it isn't too late to register. Click here for more information about registering to vote: https://www.vote4dc.com/ApplyInstructions/Register