Relocate reverse-proxy example configurations and update docs/configuring-playbook-own-webserver.md with more details

examples/reverse-proxies/caddy2/Caddyfile

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+matrix.example.tld {
+
+  handle {
+        encode zstd gzip
+
+        reverse_proxy localhost:81  {
+               header_up X-Forwarded-Port {http.request.port}
+               header_up X-Forwarded-TlsProto {tls_protocol}
+               header_up X-Forwarded-TlsCipher {tls_cipher}
+               header_up X-Forwarded-HttpsProto {proto}
+        }
+  }
+}
+
+matrix.example.tld:8448 {
+    handle {
+        encode zstd gzip
+
+        reverse_proxy 127.0.0.1:8449 {
+               header_up X-Forwarded-Port {http.request.port}
+               header_up X-Forwarded-TlsProto {tls_protocol}
+               header_up X-Forwarded-TlsCipher {tls_cipher}
+               header_up X-Forwarded-HttpsProto {proto}
+        }
+    }
+}
+
+
+example.tld {
+# Uncomment this if you are following "(Option 3): Setting up reverse-proxying of the well-known files from the base domain's server to the Matrix server" of https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/docs/configuring-well-known.md#option-3-setting-up-reverse-proxying-of-the-well-known-files-from-the-base-domains-server-to-the-matrix-server
+    @wellknown {
+        path /.well-known/matrix/*
+    }
+
+    handle @wellknown {
+        reverse_proxy https://matrix.example.tld {
+            header_up Host {http.reverse_proxy.upstream.hostport}
+        }
+    }
+}

examples/reverse-proxies/caddy2/README.md

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+# Caddy reverse-proxy fronting the playbook's integrated Traefik reverse-proxy
+
+This directory contains a sample config that shows you how to front the integrated [Traefik](https://traefik.io/) reverse-proxy webserver with your own [Caddy](https://caddyserver.com/) reverse-proxy.
+
+
+## Prerequisite configuration
+
+To get started, first follow the [front the integrated reverse-proxy webserver with another reverse-proxy](../../docs/configuring-playbook-own-webserver.md#fronting-the-integrated-reverse-proxy-webserver-with-another-reverse-proxy) instructions and update your playbook's configuration (`inventory/host_vars/matrix.<your-domain>/vars.yml`).
+
+
+## Using the Caddyfile
+
+You can either just use the [Caddyfile](Caddyfile) directly or append its content to your own Caddyfile.
+In both cases make sure to replace all the `example.tld` domains with your own domain.
+
+This example does not include additional services like element, but you should be able copy the first block and replace the matrix subdomain with the additional services subdomain. I have not tested this though.