add config example

config.example.yaml

@@ -8,3 +8,21 @@ routes:
     to: 10.0.0.2:7911
   - match: '*.example.com'
     to: 10.0.0.3:7911
+  - match: '*'
+    menu:
+      welcome: 'Welcome to YGOPro'
+      options:
+        - name: '233'
+          to: s1.ygo233.com:233
+        - name: '888'
+          to: mygo.superpre.pro:888
+        - name: example
+          to: example.com:7911
+        - name: More
+          menu:
+            welcome: 'More Options'
+            options:
+              - name: 'another'
+                to: another.example.com:7911
+              - name: 'Return to Main Menu'
+                return: true
\ No newline at end of file