Popover/Tooltip: add info about target (DevExpress#7198) (DevExpress#7199)

Author: vladaskorohodova

api-reference/10 UI Components/dxPopover/1 Configuration/hideEvent/hideEvent.md

@@ -8,6 +8,8 @@ default: undefined
 Specifies properties of popover hiding. Ignored if the [shading](/api-reference/10%20UI%20Components/dxPopover/1%20Configuration/shading.md '{basewidgetpath}/Configuration/#shading') property is set to **true**.
 
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+The [target]({basewidgetpath}/Configuration/#target) property specifies a target element for the {WidgetName} **hideEvent**.
+
 If you assign only a string that specifies event names on which the UI component is hidden, the UI component will not apply any delay.
 
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api-reference/10 UI Components/dxPopover/1 Configuration/showEvent/showEvent.md

@@ -8,6 +8,8 @@ default: undefined
 Specifies properties for displaying the UI component.
 
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+The [target]({basewidgetpath}/Configuration/#target) property specifies a target element for the {WidgetName} **showEvent**.
+
 If you assign only a string that specifies event names on which the UI component is shown, the UI component will not apply any delay.
 
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