Modify footer to represent that this is the dev branch

- 2.2.3 -> 2.3-DEV
5 jobs for 76-csrf in 3 minutes and 11 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #3528
Go-py2.7

00:01:31

passed #3529
Go-py3.4

00:01:23

passed #3530
Go-py3.5

00:01:31

passed #3531
Go-py3.6

00:01:29

72.0%
 
  Lint
passed #3532
Go-flake8

00:01:04