Docs update from Slack message

docs/3.0/manage/cloud/connect-to-cloud.mdx

@@ -102,3 +102,16 @@ for more information.
 
 In local and remote execution environments, such as VMs and containers, ensure that you've installed any flow 
 requirements or dependencies before creating a flow run.
+
+## Slack Integration
+
+Prefect Cloud now supports integration with Slack for notifications. You can configure your Prefect Cloud workspace to send alerts and notifications to a specified Slack channel.
+
+### Configure Slack Integration
+
+1. Navigate to your Prefect Cloud workspace settings.
+2. Locate the "Integrations" section and select "Slack".
+3. Follow the prompts to authenticate and authorize Prefect Cloud to send messages to your Slack workspace.
+4. Specify the Slack channel where you want to receive notifications.
+
+Once configured, you can set up alerts for flow runs, task failures, and other events to be sent to your Slack channel.

docs/3.0/resources/whats-new-prefect-3.mdx

@@ -47,6 +47,10 @@ Workers were first introduced in Prefect 2.0 as next-generation agents, and are
 
 Prefect 3.0 doesn't just bring new features; it also delivers significant performance improvements. Users running massively parallel workflows on distributed systems such as Dask and Ray will notice substantial speedups. In some benchmark cases, we've observed up to a 98% reduction in runtime overhead. These performance gains translate directly into faster execution times and more efficient resource utilization for your data pipelines.
 
+## Slack integration
+
+Prefect 3.0 now includes support for Slack integration, allowing users to receive notifications and alerts directly in their Slack channels. This integration helps teams stay informed about the status of their workflows and quickly respond to any issues that arise.
+
 ## Release notes
 
 See release notes for each released version in the [Gitub repository](https://github.com/PrefectHQ/prefect/releases).