update readme

uptime-kuma-config-export.json

@@ -72,7 +72,9 @@
     {
       "friendly_name": "My Telegram Alert (1)",
       "type": "Telegram",
-      "linked_to_monitors": ["test app"],
+      "linked_to_monitors": [
+        "test app"
+      ],
       "bot_token": "REDACTED - stored securely in Uptime Kuma, not included in this export",
       "chat_id": "REDACTED - stored securely in Uptime Kuma, not included in this export",
       "tested": true,
@@ -87,7 +89,10 @@
     "groups": [
       {
         "name": "Services",
-        "monitors": ["test app", "test uptime kuma"]
+        "monitors": [
+          "test app",
+          "test uptime kuma"
+        ]
       }
     ],
     "refresh_interval_seconds": 300,
@@ -132,4 +137,4 @@
       "result": "Page loaded correctly, fetched live data from Uptime Kuma API, displayed correct uptime percentages (99.93% for test app, 97.06% for test uptime kuma) and color-coded heartbeat bars"
     }
   ]
-}
+}