Remove nouse files.

Add the v2.8 image.

Add the v2.6 image

Remove the version badge

Add 2.4 reversion and docker tag

Refactor for support multiple ansible reversion

I will only build this image with alpine linux if you need other os
resource, maybe you can see other repo.

1. https://hub.docker.com/r/chusiang/ansible-jupyter/
2. https://hub.docker.com/r/williamyeh/ansible/