docs: Fix spacing so the page renders properly

Without these two spaces, the side nav bar fails to render on the website.

Author: dak1n1

website/docs/d/persistent_volume_claim.html.markdown

@@ -3,7 +3,7 @@ layout: "kubernetes"
 page_title: "Kubernetes: kubernetes_persistent_volume_claim"
 sidebar_current: "docs-kubernetes-data-source-persistent-volume-claim"
 description: |-
-A PersistentVolumeClaim (PVC) is a request for storage by a user. This data source retrieves information about the specified PVC.
+  A PersistentVolumeClaim (PVC) is a request for storage by a user. This data source retrieves information about the specified PVC.
 ---
 
 # kubernetes_persistent_volume_claim