[Docs] Installation has a broken link

[marcusgadbem]

Installation page has a broken link at Minimum requirements section.
http://docs.azk.io/en/installation/#mininum-requirements

On last bullet, images should link to http://docs.azk.io/en/images/

[marcusgadbem]

Summary's title differs from pages' title:

• Mounting files / Mapping files - http://docs.azk.io/en/getting-started/mounts-files.html
• Persisting data / Persisting information http://docs.azk.io/en/getting-started/persisting-data.html

[marcusgadbem]

At http://docs.azk.io/en/images/#what-are-these-images

Links image, docker and dockerfile are broken:
http://docs.azk.io/en/azkfilejs/image.html
http://docs.azk.io/en/azkfilejs/image.html#docker
http://docs.azk.io/en/azkfilejs/image.html#dockerfile

[marcusgadbem]

At http://docs.azk.io/en/images/#local-dockerfile

Links images and local dockerfile are broken:
http://docs.azk.io/en/azkfilejs/image.html
http://docs.azk.io/en/azkfilejs/image.html#dockerfile

[marcusgadbem]

At http://docs.azk.io/en/deploy/#supported-customization

• DEPLOY_API_TOKEN - User's API token in DigitalOcean;

Add a disclaimer that iser must be logged in to access the User's API Tokens on DO panel.

[marcusgadbem]

At http://docs.azk.io/en/reference/cli/

Command open is missing.

[marcusgadbem]

At http://docs.azk.io/en/reference/cli/agent.html

Link documentation is broken.