Make sketch dynamic and link back to production architecture
See the general Documentation guidelines http://docs.gitlab.com/ce/development/doc_styleguide.html
What does this MR do?
- Takes out the static gitlab architecture drawing (although I see now I forgot to remove the .png file) and replaces it with a live link. This will help keep DRY, but if there are cases where people rely on the documentation being available offline, then perhaps it is not a good idea.
- Adds a link to our production architecture for GitLab.com
Moving docs to a new location?
No.