Use Tina Cloud for handbook

[jeffsee55]

The goal is to have the handbook updated so that non-technical users can use it during dogfooding next week.

[DirtyF]

@logan-anderson The Handbook repository might have differed from Alpaca, I'd encourage implementing this directly in the Handbook repo, and then see if we can backport it to Alpaca Documentation starter.

[logan-anderson]

@logan-anderson The Handbook repository might have differed from Alpaca, I'd encourage implementing this directly in the Handbook repo, and then see if we can backport it to Alpaca Documentation starter.

@DirtyF Will do thanks for the suggestion!

[logan-anderson]

PR is here: https://github.com/forestryio/forestry-handbook/pull/54