Changed the default image.

I changed the default image.

Closes #77
2 jobs for 77-change-default-image in 1 minute and 28 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #4578
whats-open-py3.5

00:01:25

passed #4579
whats-open-py3.6

00:01:28