Making metadata:
- more consistent
- more specific (fixed copy pasting)
- refine coverage
Insecure information cleanup
Removing no longer used files:
- mkdocs is gone
- the registry diagram is not used, and is a bit silly :)
Minor fixes
Fixing links
Recipes:
- harmonized code sections style to the rest of the docs
- harmonized recipe "style"
- listing new recipes
Enhance deploying
Signed-off-by: Olivier Gambier <olivier@docker.com>