Use RFC5737 addresses in all docs examples

website/content/api-docs/agent/service.mdx

@@ -69,7 +69,7 @@ $ curl \
         "port": 8000
       },
       "wan": {
-        "address": "198.18.0.53",
+        "address": "198.51.100.53",
         "port": 80
       }
     },
@@ -196,7 +196,7 @@ $ curl \
       "port": 8000
     },
     "wan": {
-      "address": "198.18.0.53",
+      "address": "198.51.100.53",
       "port": 80
     }
   },