update readme

README.md

@@ -1,2 +1,32 @@
 # caddy-extauth
 an external authentication plugin for caddy
+
+## Quickstart
+
+### Requirements
+
+You need `podman` and `buildah` to use the projects Makefile. If you don't have those tools and don't want to install them, just go with the `xcaddy` instructions and use this repo as plugin module.
+
+### Build and Run
+```bash
+> make all
+> make run
+> curl -H "Authorization: secret" localhost:2015
+You are authenticated!
+> podman logs caddy-extauth-auth
+{"level":"info","ip":"127.0.0.1:33554","time":"2020-10-16T06:09:33Z","message":"success"}
+> podman logs caddy-extauth-logger
+---
+GET / HTTP/1.1
+Host: localhost:2015
+User-Agent: curl/7.72.0
+Accept: */*
+Accept-Encoding: gzip
+Authorization: secret
+X-Forwarded-For: 127.0.0.1
+X-Forwarded-Proto: http
+X-Token: token
+> make stop
+```
+
+There is also a compose.yaml file for your reference.