Merge pull request #14388 from kalexand-rh/osdocs396

OSDOCS-396 machine health checks are tech preview

Author: kalexand-rh

machine_management/deploying-machine-health-checks.adoc

@@ -7,6 +7,9 @@ toc::[]
 You can configure and deploy a machine health check to automatically repair
 damaged machines in a machine pool.
 
+:FeatureName: Machine health checks
+include::modules/technology-preview.adoc[leveloffset=+1]
+
 include::modules/machine-health-checks-about.adoc[leveloffset=+1]
 
 include::modules/machine-health-checks-resource.adoc[leveloffset=+1]