Update README.md

add authelia

README.md

@@ -55,6 +55,9 @@ docker compose up
 - [Nginx Proxy Manager](examples/nginx-proxy-manager) - Nginx Proxy Manager is an easy way to accomplish reverse proxying hosts with SSL termination.
 - [Caddy](examples/caddy) - The Caddy web server is an extensible, cross-platform, open-source web server written in Go. Caddy obtains and renews TLS certificates for your sites automatically.
 
+### Identity Providers / Single Sign On
+- [Authelia](examples/authelia) - Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for your applications via a web portal. It acts as a companion for reverse proxies by allowing, denying, or redirecting requests. Recommended to combine with [Traefik](examples/traefik).
+
 ### Virtual Private Network (VPN)
 - [wg-easy](examples/wg-easy) - The easiest way to install & manage WireGuard on any Linux host. All-in-one deployment of a WireGuard VPN network service + web management UI.
 - [WireGuard](examples/wireguard) - WireGuard by Linuxserver.io is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography.
@@ -197,4 +200,4 @@ docker compose up
 
 <a href="https://github.com/Haxxnet/Compose-Examples/graphs/contributors">
   <img src="https://contrib.rocks/image?repo=Haxxnet/Compose-Examples" />
-</a>
+</a>