Add asset checks + alerts to next steps section of tutorial. (#22268)

Hopefully helps with feature discoverability.

docs/content/tutorial/next-steps.mdx

@@ -9,6 +9,7 @@ description: What if you want to do more after completing the asset tutorial?
 
 What if you want to do more?
 
+- **Data quality** - Dagster provides ways to validate the data that your assets produce via [asset checks](/concepts/assets/asset-checks), and if using Dagster+, receive [alerts](/dagster-plus/managing-deployments/alerts) when problems are detected.
 - **Partitioning assets** - This tutorial covered assets whose entire contents get re-computed and overwritten with every materialization. When assets are large, it's common to [partition](/concepts/partitions-schedules-sensors/partitions) them, so that each run only materializes a single partition.
 - **Test your assets** - This tutorial showed you how to materialize assets. To learn how to test them, check out the [guide on testing assets](/guides/dagster/testing-assets).
 - **Non-asset jobs** - This tutorial showed you how to work with Dagster's primary building block, assets. However, sometimes you'll have tasks that don't produce assets. To learn how to execute tasks, check out the [Intro to ops and jobs guide](/guides/dagster/intro-to-ops-jobs).