Update README.md

Streamline database support code

Add OAuth client internal auth mechanism

Return temporary auth errors as such

Add SQL connection pooling and tx support code

s/auth.User/auth.AuthContext/g

gofmt

Refactor GraphQL client into separate module

Implement fetching user profiles from meta.sr.ht

auth/middleware: split OAuth 2.0 into many funcs

s/Scopes/Grants/g

Implement OAuth 2.0 bearer token w/scopes

OAuth 2.0 Bearer: check revocation status

Add Redis middleware

auth: implement OAuth 2.0 bearer tokens

Add auth/token.go & support code in crypto.go

Import directives from meta.sr.ht writable-api

Be tolerant of hosts without port in RemoteAddr

Improve error message for internal auth

Update InternalAuth structure

This allows us to include information about the client and node which is
making internal requests.