CSM without InfraMon - add Google Cloud Platform section (#26699)

* Add Azure to CSM without InfraMon setup docs

* Add GCP to CSM without inframon docs

content/en/security/cloud_security_management/setup/without_infrastructure_monitoring.md

@@ -10,7 +10,7 @@ In addition to setting up CSM with or without an Agent, you can also set it up w
 1. On the **Configuration** tab, select the account you want to enable CSM on.
 
    If you don't see the required account, add it by clicking **Add AWS Account(s)** and following the onscreen prompts.
-1. To turn off infrastructure monitoring on a given account, under the selected account number, navigate to the **Metric Collection** tab, then click the **disable metric collection** link. Then, click **Disable Metric Collection** to confirm.
+1. To turn off infrastructure monitoring on the selected account, under the account number, navigate to the **Metric Collection** tab, then click the **disable metric collection** link. Then, click **Disable Metric Collection** to confirm.
 1. To turn on CSM, on the **Resource Collection** tab, turn on the **Enable Resource Collection** toggle, and select the **Enable Cloud Security Management** checkbox.
 1. Click **Save**.
 
@@ -22,12 +22,25 @@ In addition to setting up CSM with or without an Agent, you can also set it up w
 1. Select the client ID or subscription you want to enable CSM on.
 
    If you don't see the required client ID, add it by clicking **Add New App Registration** and following the onscreen prompts.
-1. To turn off infrastructure monitoring on a given account, under the selected client ID, navigate to the **Metric Collection** tab, then turn off the **Enable Metric Collection** toggle. 
+1. To turn off infrastructure monitoring on the selected account, under the client ID, navigate to the **Metric Collection** tab, then turn off the **Enable Metric Collection** toggle. 
+1. To turn on CSM, on the **Resource Collection** tab, turn on the **Enable Resource Collection** toggle, and select the **Enable Cloud Security Management** checkbox.
+1. Click **Save**.
+
+**Note**: In your CSM settings, set up [resource evaluation filters][1] to limit the number of hosts you need security on.
+
+## Set up CSM on your Google Cloud Platform account
+
+1. Navigate to the [Google Cloud Platform configuration page][4] in Datadog.
+1. Select the service account you want to enable CSM on.
+
+   If you don't see the required account, add it by clicking **Add GCP Account** and following the onscreen prompts.
+1. To turn off infrastructure monitoring on the selected account, under the account name, navigate to the **Metric Collection** tab. Then, above the Metric Collection table, click **Disable All**.
 1. To turn on CSM, on the **Resource Collection** tab, turn on the **Enable Resource Collection** toggle, and select the **Enable Cloud Security Management** checkbox.
 1. Click **Save**.
 
 **Note**: In your CSM settings, set up [resource evaluation filters][1] to limit the number of hosts you need security on.
 
 [1]: /security/cloud_security_management/guide/resource_evaluation_filters/
 [2]: https://app.datadoghq.com/integrations/amazon-web-services
-[3]: https://app.datadoghq.com/integrations/azure
+[3]: https://app.datadoghq.com/integrations/azure
+[4]: https://app.datadoghq.com/integrations/google-cloud-platform