Add Overview of Request Network SDK and Request Node to the Getting Started section of the docs.

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Towards #21
Towards #22

Outline

• The Request Network SDK is the set of software packages for interacting with the Request Network.

  • Creating requests
  • Updating requests
  • Paying requests
  • Retrieving requests
  • Detecting payments

• The Request Node is a bundle of software for:

  • Persisting requests to IPFS and the Request Network Storage smart contracts.
  • Retrieving requests from IPFS and payment information via The Graph.

• The Request Node exists to provide "gasless" creation of requests to end users. The Request Node operator pays the Request Network protocol fee on the end user's behalf.

• To help builders get started quickly, the Request Network Foundation operates several Request Node Gateways that are free for anyone to use.

Definition of Done

• Include a diagram

Draft Diagram: https://miro.com/app/board/uXjVNfmbkUc=/?share_link_id=918395481353

Future Improvements

• Create a new "request-network-sdk" package that bundles all the packages for interacting with the protocol. requestNetwork#1181

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Migrated from Asana: https://app.asana.com/0/1203912381456855/1205288101268703/f

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https://docs.request.network/get-started/protocol-overview/request-client-and-request-node