Added arcades for monitors and alerts.

Author: Shannon Anahata

docs/product/monitors-and-alerts/alerts/index.mdx

@@ -20,6 +20,8 @@ Sentry's **Alerts** take action when issues in your organization match the defin
 
 ## Creating an Alert
 
+<Arcade src="https://demo.arcade.software/yXRDN2qTVqtedkfpQIbB?embed" />
+
 To create an Alert, go to the [Alerts](https://sentry.io/monitors/alerts) page in Sentry and click **Create Alert**.
 
 ### Select Sources and Environments

docs/product/monitors-and-alerts/monitors/index.mdx

@@ -28,7 +28,7 @@ Sentry also provides default monitors that are automatically created for you whe
 
 ## Creating a Monitor
 
-![create-monitor =800x](./img/create-monitor.png)
+<Arcade src="https://demo.arcade.software/j1FTUiDoZ2lomafKtxr8?embed" />
 
 To create a Monitor, navigate to the [Monitors](https://sentry.io/issues/monitors/new/) page and click **Create Monitor**. You can choose between the three types of Monitors (metric, cron, and uptime). Each one will have a separate configuration process.