a digit typo in apf docs

Author: yue9944882

content/en/docs/concepts/cluster-administration/flow-control.md

@@ -495,7 +495,7 @@ When you enable the API Priority and Fairness feature, the kube-apiserver serves
   system,            system-nodes,   12,         0,                   system:node:127.0.0.1, 2020-07-23T15:26:57.179170694Z,
   ```
 
-  In addition to the queued requests, the output includeas one phantom line for each priority level that is exempt from limitation.
+  In addition to the queued requests, the output includes one phantom line for each priority level that is exempt from limitation.
 
   You can get a more detailed listing with a command like this:
   ```shell