Merge pull request #1282 from YuPengZTE/dev

The etc and dot is seprated

docs/user-guide/jobs.md

@@ -157,7 +157,7 @@ parallelism, for a variety or reasons:
   remaining completions.   Higher values of `.spec.parallelism` are effectively ignored.
 - For work queue jobs, no new pods are started after any pod has succeeded -- remaining pods are allowed to complete, however.
 - If the controller has not had time to react.
-- If the controller failed to create pods for any reason (lack of ResourceQuota, lack of permission, etc),
+- If the controller failed to create pods for any reason (lack of ResourceQuota, lack of permission, etc.),
   then there may be fewer pods than requested.
 - The controller may throttle new pod creation due to excessive previous pod failures in the same Job.
 - When a pod is gracefully shutdown, it make take time to stop.

docs/user-guide/volumes.md

@@ -502,7 +502,7 @@ See the [Quobyte example](https://github.com/kubernetes/kubernetes/tree/{{page.g
 
 ## Resources
 
-The storage media (Disk, SSD, etc) of an `emptyDir` volume is determined by the
+The storage media (Disk, SSD, etc.) of an `emptyDir` volume is determined by the
 medium of the filesystem holding the kubelet root dir (typically
 `/var/lib/kubelet`).  There is no limit on how much space an `emptyDir` or
 `hostPath` volume can consume, and no isolation between containers or between