Re-organise project documentation

[bajiat]

Export Hackpad documents in markdown format and archive them in our docs folder in our Github repository.

Definition of done

• Export Hackpad documents in markdown format.
• Create documentation repository in the Apinf organization.
• Publish the exported documentation in the repository.
• Move any documentation from the api-umbrella-dashboard repository into documentation repository.
• Publish the documentation in the ReadTheDocs.org.

[brylie]

@kyyberi, we have exported all Apinf Hackpad documents, and will be adding them to a new documentation repository. The content license for the Apinf Documentation repository is CreativeCommons Zero. Is it alright that we include your APIOps contributions to our Hackpad in the new documentation repository?

[kyyberi]

I'm cool with that