Add example Tailscale configuration

Author: zuedev

examples/tailscale/README.md

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+An example configuration for using Tailscale for networking.

examples/tailscale/docker-compose.yaml

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+services:
+  hytale:
+    image: ghcr.io/zuedev/hytale-server-docker:main
+    ports:
+      - "5520:5520/udp"
+    volumes:
+      - ./hytale-data:/app/Hytale
+    restart: unless-stopped
+    stdin_open: true
+    tty: true
+    network_mode: service:tailscale
+    depends_on:
+      - tailscale
+
+  tailscale:
+    image: tailscale/tailscale:latest
+    hostname: "hytale-server"
+    environment:environment:
+      TS_AUTHKEY: "<YOUR_TAILSCALE_AUTH_KEY>"
+      TS_STATE_DIR: "/var/lib/tailscale"
+    volumes:
+      - ./tailscale-data:/var/lib/tailscale
+      - /dev/net/tun:/dev/net/tun
+    cap_add:
+      - net_admin
+      - sys_module
+    restart: unless-stopped