Removing & reference from new() parameter

docs/beginner/tutorial2-surface/README.md

@@ -207,7 +207,7 @@ Regardless, `PresentMode::Fifo` will always be supported, and `PresentMode::Auto
 Now that we've configured our surface properly we can add these new fields at the end of the method.
 
 ```rust
-    async fn new(window: &Window) -> Self {
+    async fn new(window: Window) -> Self {
         // ...
 
         Self {