Document self-hosting options

[lidel]

Needs

• At least mention in README that points people in the right direction
  • could be article on docs.ipfs.io, or a link to docker image etc

• is there any open source implementation for a self-hosted, AWS S3-backed ipfs pinning service that conforms to the Pinning service API?
  or backed by any high-scale centralized storage

Solutions

Options to investigate:

• https://ipfscluster.io
  • we already provide docker images etc
  • supports a subset of the pinning service api since v1.0.0 (Support the Pinning Services API ipfs-cluster/ipfs-cluster#1213)
  • needs docs how to use it for self-hosted service, how to set up Authorization: Bearer <access-token> etc
• https://github.com/ipfs-elastic-provider/ipfs-elastic-provider is probably not ready yet
  • does not support pinning service api on its own
  • providing on DHT requires running hydra boosters

If anyone has time to comment on their experiences, or even document self-hosting setup end-to-end, that will be very useful.