Update the README

README.md

@@ -1,7 +1,46 @@
+# Simple Auth
+
 All this does is present a login page.
 Upon successful login, the browser gets a cookie,
 and further attempts to access will get the success page.
 
 I made this to use with the Traefik forward-auth middleware.
-All I need was a simple password, that's easy to fill with a password manager.
+All I need is a simple password, that's easy to fill with a password manager.
 This checks those boxes.
+
+## Installation with Traefik
+
+I only use docker swarm. You'd do something like the following:
+
+```yaml
+services:
+  my-cool-service:
+    # All your cool stuff here
+    deploy:
+      labels:
+        # Keep all your existing traefik stuff
+        traefik.http.routers.dashboard.middlewares: forward-auth
+        traefik.http.middlewares.forward-auth.forwardauth.address: http://simpleauth:8080/
+  simpleauth:
+    image: ghcr.io/nealey/simpleauth
+    secrets:
+      - password
+    deploy:
+      labels:
+        traefik.enable: "true"
+        traefik.http.routers.simpleauth.rules: "PathPrefix(`/`)"
+        traefik.http.services.simpleauth.loadbalancer.server.port: "8080"
+
+secrets:
+  password:
+    file: password
+    name: password-v1
+```
+
+## Note
+
+For some reason that I haven't bothered looking into,
+I have to first load `/` in the browser.
+I think it has something to do with cookies going through traefik simpleauth,
+and I could probably fix it with some JavaScript,
+but this is good enough for me.