Add cache control headers for static assets.

Signed-off-by: Zac Brown <git@zacbrown.org>

Fix directory.

Switch to a minimal nginx image.

Add license.

Signed-off-by: Zac Brown <zbrown@debian-dev-1.fart>

Initial commit.

Signed-off-by: Zac Brown <zbrown@debian-dev-1.fart>