Add Dial Fields comment to client.json

Signed-off-by: Shtorm <108103062+shtorm-7@users.noreply.github.com>

examples/parser/client.json

@@ -27,6 +27,7 @@
       "tag": "vless-out",
       // Supported protocols: hysteria, hysteria2, shadowsocks, trojan, tuic, vless, vmess
       "link": "vless://b5e41c8c-c437-4689-b863-76208a3efb4b@0.0.0.0:443?..."
+      // Dial Fields
     }
   ],
   "route": {
@@ -34,4 +35,4 @@
     "default_domain_resolver": "default",
     "auto_detect_interface": true
   }
-}
+}