📝(doc) add a self-host tutorial

Add a documentation to deploy a self-hosted visio instance in a
standalone way (without AI features)

docs/examples/livekit.values.yaml

@@ -0,0 +1,40 @@
+replicaCount: 1
+terminationGracePeriodSeconds: 18000
+
+livekit:
+  keys:
+      devkey: secret
+  log_level: debug
+  rtc:
+    use_external_ip: false
+    port_range_start: 50000
+    port_range_end: 60000
+    tcp_port: 7881
+  redis:
+    address: redis-master:6379
+    password: pass
+  turn:
+    enabled: true
+    udp_port: 443
+    domain: livekit.127.0.0.1.nip.io
+    loadBalancerAnnotations: {}
+
+
+loadBalancer:
+  type: nginx
+  annotations:
+    nginx.ingress.kubernetes.io/rewrite-target: /
+    nginx.ingress.kubernetes.io/ssl-redirect: "true"
+  tls:
+    - hosts:
+        - livekit.127.0.0.1.nip.io
+      secretName: livekit-dinum-cert
+
+autoscaling:
+  enabled: false
+  minReplicas: 1
+  maxReplicas: 5
+  targetCPUUtilizationPercentage: 60
+
+nodeSelector: {}
+resources: {}