Apply suggestions from code review
Thanks for the pointers!
-# Running behind a reverse proxy
+# Running headscale behind a reverse proxy
-Running Headscale behind a reverse proxy is suitable for container-based deployments. This is especially useful on a server were port 443 is already being used for other web services.
+Running headscale behind a reverse proxy is useful when running multiple applications on the same server, and you want to reuse the same external IP and port - usually tcp/443 for HTTPS.
### WebSockets
-The reverse proxy _must_ be configured to support websockets if you are running headscale 0.17.x+ and tailscale v1.30+.
+The reverse proxy MUST be configured to support WebSockets, as it is needed for clients running Tailscale v1.30+.
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+WebSockets support is required when using the headscale embedded DERP server. In this case, you will also need to expose the UDP port used for STUN (by default, udp/3478). Please check our [config-example.yaml](https://github.com/juanfont/headscale/blob/main/config-example.yaml).
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### TLS
Headscale can be configured not to use TLS, leaving it to the reverse proxy to handle. Add the following configuration values to your headscale config file.
