bump: update caddy to 2.8.4 and caddy-docker-proxy to 2.9.1

README.md

@@ -1,2 +1,12 @@
 # caddy-homelab
 
+## Description
+This Caddy image is built and used for my homelab to deliver Let's Encrypt certificates with my DNS provider OVH using DNS Challenge and enables Caddy to be used as a reverse proxy for Docker containers via labels
+
+## Requirements
+This image uses the following software:
+- [Caddy](https://github.com/caddyserver/caddy)
+    - [Caddy-Docker-Proxy](https://github.com/lucaslorentz/caddy-docker-proxy)
+    - [OVH module for Caddy](https://github.com/caddy-dns/ovh)
+
+The last module can be changed for the DNS provider of your module of your choice, please make sure it is listed here: https://github.com/caddy-dns