Documentation

folder	read it to
Getting started	install hookspool, run the demo, turn on your first bobbin, and check it works
Configuration	look up a config key, set coalescing windows, routes and tees, or add a destination
Bobbins	find the bobbin for a service, write a new one, customise one privately, or review one
Operations	run it on a host, keep it healthy, repair a stuck batch, upgrade, and find a command
Architecture	understand the design, see how it compares with other tools, and read the FAQ

The README is the short version. CONTRIBUTING.md is for people changing hookspool, and the changelog says what changed.