Update Porch controllers description for clarity

Clarified the description of the Porch controllers component to include validation for both PackageRevision and Repository resources.

Author: efiacor

docs/content/en/docs/6_configuration_and_deployments/configurations/components/porch-controllers-config/_index.md

@@ -5,7 +5,7 @@ weight: 2
 description: "Configure the Porch controllers component"
 ---
 
-The Porch controllers manage Repository synchronization, PackageVariants, PackageVariantSets, and PackageRevision validation via webhooks.
+The Porch controllers manage Repository synchronization, PackageVariants, PackageVariantSets, and PackageRevision. Also, validation is handled via webhooks for both PackageRevision and Repository resources.
 
 ## Enabling Controllers