Update content/en/docs/reference/node/kubelet-files.md

Co-authored-by: Qiming Teng <[email protected]>

content/en/docs/reference/node/kubelet-files.md

@@ -51,7 +51,7 @@ Location can be configured using the `staticPodPath` kubelet configuration optio
 
 CPU managers and memory managers use state files to keep the mapping between
 Pods and allocated resources. Files are named `memory_manager_state`
-and `cpu_manager_state` and both located in kubelet's root directory,
+and `cpu_manager_state` and both located in the kubelet's root directory,
 typically `/var/lib/kubelet`. Kubelet root directory can be configured
 using the kubelet command line argument `--root-dir`.