Restructure ci index
See the general Documentation guidelines http://docs.gitlab.com/ce/development/doc_styleguide.html
What does this MR do?
- Improve CI index (links and organization)
- Improve CI examples index (links and organization)
- Prepare CI index and examples index to receive comm posts (not going into the blog anymore)
MR to merge into https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9861
cc/ @axil @seanpackham