Make yaml spacing consistence in documentation for build manifests.

Complete OAuth 2.0 documentation

Document authorization code size

oauth.md: update page title

Initial OAuth 2.0 documentation

scale.md: set min Y to 0

Don't stack git.sr.ht graph

Fix title of git.sr.ht graph

Add git.sr.ht disk utilization graph

scale.md: add chart

Add link to approximate build worker usage

Update ops/scale.md

Update scale.md

Update scale.md

Add ops/scale.md

Add acceptable usage limits for git.sr.ht

Fix typo

Improve tags docs

Add initial docs for hub.sr.ht

Clarify how to make push options persist

git.sr.ht: document -osubmit pattern overriding

Ref: ~sircmpwn/git.sr.ht#316