DOCATT-8841: Finished incomplete deviceLayoutName param description

- Finished the sentence using other similar explanations from InputSystem/Actions/InputActionRebindingExtensions.cs and InputSystem/Actions/InputBinding.cs.

Author: unitALG

Packages/com.unity.inputsystem/InputSystem/Controls/InputControlPath.cs

@@ -204,7 +204,7 @@ public static string ToHumanReadableString(string path,
         /// </summary>
         /// <param name="path">A control path such as "&lt;XRController>{LeftHand}/position".</param>
         /// <param name="deviceLayoutName">Receives the name of the device layout that the control path was resolved to.
-        /// This is useful </param>
+        /// This is useful if you want to decide on an icon to display that represents the device.</param>
         /// <param name="controlPath">Receives the path to the referenced control on the device or <c>null</c> if not applicable.
         /// For example, with a <paramref name="path"/> of <c>"&lt;Gamepad&gt;/dpad/up"</c>, the resulting control path
         /// will be <c>"dpad/up"</c>. This is useful when trying to look up additional resources (such as images) based on the