[en] remove trailing whitespaces install-kubectl-windows.md

Author: Arhell

content/en/docs/tasks/tools/install-kubectl-windows.md

@@ -69,7 +69,7 @@ The following methods exist for installing kubectl on Windows:
    Or use this for detailed view of version:
 
    ```cmd
-   kubectl version --client --output=yaml     
+   kubectl version --client --output=yaml
    ```
 
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