docs: move dynamo docs into new docs page

[ion-elgreco]

Description

Adds the dynamo docs into our new docs, within the python write_deltalake I am pointing to the guide since it's quite extensive and only for S3 users.

@rtyler @dispanser

[MrPowers]

LGTM, but I think we might want to organize this content a bit differently.

Here's the current structure:

• Usage
  • Writing a table

Here's what you're proposing:

• Usage
  • Writing
    • Writing to S3 with S3 locking provider

We may want to organize the content as follows:

• Clouds
  • AWS
    • S3 locking with DynamoDB
    • AWS Lambda
    • AWS Sagemaker
  • Azure
    • Azure functions

[ion-elgreco]

We could reorganize that a bit later, currently I am only moving some docs that landed by accident in the sphinx back in to the current docs.

In terms of terminology, I would say object store probably better and S3 API is also used outside of AWS so maybe best to not to mention AWS specifically here

[MrPowers]

@ion-elgreco - yea, in general Google doesn't like when pages get moved to new URLs. Perhaps we can add redirects for the links we're breaking? https://github.com/mkdocs/mkdocs-redirects

[ion-elgreco]

@MrPowers a nice one, let's do that in the next reorganisation of the pages.

Then I'll also write a small example where you write to Azure

[MrPowers]

LGTM