docs: update Popconfirm English doc (#7541)

Fixed typos.

components/popconfirm/index.en-US.md

@@ -8,23 +8,23 @@ A simple and compact confirmation dialog of an action.
 
 ## When To Use
 
-A simple and compact dialog used for asking an user confirmation.
+A simple and compact dialog used for asking for user confirmation.
 
-The difference with `confirm` is more lightweight than the static popped full-screen confirm modal.
+The difference with the `confirm` modal dialog is that it's more lightweight than the static popped full-screen confirm modal.
 
 ## API
 
 | Param     | Description   | Type     | Default value       |
 |-----------|------------------------------------------|---------------|--------|
-| title     | title of the confirmation box                             | string\|ReactNode | none     |
-| onConfirm | callback of confirmation                           | function(e)      | none     |
-| onCancel  | callback of cancel                           | function(e)      | none     |
-| okText    | text of the confirmation button                              | string        | Confirm   |
-| okType    | type of the confirmation button                              | string        | primary   |
-| cancelText| text of the cancel button                              | string        | Cancel   |
+| title     | title of the confirmation box            | string\|ReactNode | -     |
+| onConfirm | callback of confirmation                | function(e)      | -     |
+| onCancel  | callback of cancel                       | function(e)      | -     |
+| okText    | text of the Confirm button               | string        | `Confirm`   |
+| okType    | Button `type` of the Confirm button      | string        | `primary`   |
+| cancelText| text of the Cancel button                | string        | `Cancel`   |
 
 Consult [Tooltip's documentation](https://ant.design/components/tooltip/#API) to find more APIs.
 
 ## Note
 
-Please ensure that the child node of `Popconfirm` accepts `onMouseEnter`, `onMouseLeave`, `onFocus`, `onClick` event.
+Please ensure that the child node of `Popconfirm` accepts `onMouseEnter`, `onMouseLeave`, `onFocus`, `onClick` events.