DOCS: Update wrong comment on ReleasePosition variable (#1616)

Author: ElisarEisenbach

ExternalSampleProjects/TouchSamples/Assets/Scripts/Gestures/TapInput.cs

@@ -13,7 +13,7 @@ public struct TapInput
         public readonly Vector2 PressPosition;
 
         /// <summary>
-        /// Position that the tap started.
+        /// Position that the tap released on.
         /// </summary>
         public readonly Vector2 ReleasePosition;