Change references to docs from Synapse

Description

Doc is ready to go on Gtihub. The plan is to change the DNS for 'docs.synapse.org' to point to Github pages instead of the existing S3 bucket. That means we loose the ability to redirect for the r/python docs, and to host the 'legacy/r' and 'rest' docs.

On the Synapse home page, we have links to the docs:

Environment

None

Status

Assignee

Jay Hodgson

Reporter

Xavier Schildwachter

Labels

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Validator

Xavier Schildwachter

Release Version History

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Fix versions

Priority

Major
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