Merge pull request #43815 from rohan-kapse/patch-3

Clarify information about emptyDir volume first creation

Author: k8s-ci-robot

content/en/docs/concepts/storage/volumes.md

@@ -222,9 +222,8 @@ to learn more.
 
 ### emptyDir {#emptydir}
 
-An `emptyDir` volume is first created when a Pod is assigned to a node, and
-exists as long as that Pod is running on that node. As the name says, the
-`emptyDir` volume is initially empty. All containers in the Pod can read and write the same
+For a Pod that defines an `emptyDir` volume, the volume is created when the Pod is assigned to a node.
+As the name says, the `emptyDir` volume is initially empty. All containers in the Pod can read and write the same
 files in the `emptyDir` volume, though that volume can be mounted at the same
 or different paths in each container. When a Pod is removed from a node for
 any reason, the data in the `emptyDir` is deleted permanently.