1. add motoring section to digital ocean guide

2. show default user and password of grafana

src/content/docs/en/sdk/guides/aws-deployment.mdx

@@ -810,7 +810,7 @@ Some services do not support this without additional configurations (for example
 ### Monitoring  
 You can monitor the cluster's running status through Grafana. 
 Additionally, you can send alerts via email and Slack using Alertmanager. 
-If you have configured a domain for Grafana in the previous steps, you can access it by opening http://grafana.yourdomain.xyz, where you will see two sets of dashboards.
+If you have configured a domain for Grafana in the previous steps, you can access it by opening http://grafana.yourdomain, where you will see two sets of dashboards. The defalt password of user `admin` is `scroll-sdk`.
 <ClickToZoom src={GrafanaDashboard} alt="Copy Webhook URL" />
 
 #### send alert to slack

src/content/docs/en/sdk/guides/digital-ocean-alt-gas-token.mdx

@@ -25,6 +25,10 @@ import DOKubernetesConnect from "./_images/do-cluster-connection.png"
 import DOConnectionPools from "./_images/do-connection-pools.png"
 import DOConnectionInfo from "./_images/do-connection-info.png"
 import DOVPCNetwork from "./_images/do-vpc-network.png"
+import CreateSlackApp from "./_images/CreateSlackApp.png"
+import AddNewWebhookToWorkspace from "./_images/AddNewWebhookToWorkspace.png"
+import CopyWebhookURL from "./_images/CopyWebhookURL.png"
+import GrafanaDashboard from "./_images/grafana.png"
 
 This guide documents getting a Scroll SDK deployment working on Digital Ocean's Kubernetes and managed databases, using Cloudflare for DNS.
 
@@ -536,4 +540,63 @@ To quickly get started with Grafana, run the following command:
 
 Now, visit the localhost URL in [your browser](http://localhost:3000/). The default password for the `admin` user is `prom-operator`.
 
-Adding an ingress URL, changing the default password or adding LDAP login are all suggested if you use this stack in production. */}
+Adding an ingress URL, changing the default password or adding LDAP login are all suggested if you use this stack in production. */}
+
+
+### Monitoring  
+You can monitor the cluster's running status through Grafana. 
+Additionally, you can send alerts via email and Slack using Alertmanager. 
+If you have configured a domain for Grafana in the previous steps, you can access it by opening http://grafana.yourdomain, where you will see two sets of dashboards. The defalt password of user `admin` is `scroll-sdk`.
+<ClickToZoom src={GrafanaDashboard} alt="Copy Webhook URL" />
+
+#### send alert to slack
+1. **Create a Slack App**
+
+   Open [https://api.slack.com/apps](https://api.slack.com/apps) and click **`Create New App`** if you don't have one already. Select **`From scratch`**, enter a name, and select the workspace.
+
+2. **Activate Incoming Webhooks**
+
+   Click the **`Incoming Webhooks`** label on the right side of the page, then turn on **`Activate Incoming Webhooks`**.  
+   <ClickToZoom src={CreateSlackApp} alt="Create Slack App" />
+
+   Click the **`Add New Webhook to Workspace`** button.  
+   <ClickToZoom src={AddNewWebhookToWorkspace} alt="Add New Webhook to Workspace" />
+
+   Select the channel you want to send alerts to, then copy the Webhook URL.  
+   <ClickToZoom src={CopyWebhookURL} alt="Copy Webhook URL" />
+
+
+3. **Edit the Config File**
+
+    Edit `./values/alert-manager.yaml` to replace it with your webhook URL and your Slack channel name.
+    ```
+    kube-prometheus-stack:
+      alertmanager:
+        config:
+          global:
+            resolve_timeout: 5m
+            slack_api_url: 'https://hooks.slack.com/services/xxxxxxxxxxx/xxxxxxxxxxx/xxxxxxxxxxxxxxxxxxxxxxxx' # your webhook url
+          receivers:
+          - name: 'slack-alerts'
+            slack_configs:
+            - channel: '#scroll-webhook' #your channel name
+              send_resolved: true
+              text: '{{ .CommonAnnotations.description }}'
+              title: '{{ .CommonAnnotations.summary }}'
+          route:
+            group_by: ['alertname']
+            receiver: 'slack-alerts'
+            routes:
+            - matchers: []
+              receiver: 'slack-alerts'
+    ```
+    This configuration file will send all alerts to your Slack channel. If you need more complex rules, refer to the [Prometheus Alerting Configuration Documentation](https://prometheus.io/docs/alerting/latest/configuration/).
+
+4. **Update to alertmanager**
+
+    Use the following command to update Alertmanager:
+    ```
+    helm upgrade -i scroll-monitor oci://ghcr.io/scroll-tech/scroll-sdk/helm/scroll-monitor -n $(NAMESPACE) \
+        --version=0.0.4 \
+        --values ./values/alert-manager.yaml
+    ```