migrate tutorial5 docs

docs/beginner/tutorial5-textures/README.md

@@ -12,7 +12,7 @@ If we want to map an image to our mesh, we first need an image. Let's use this h
 
 We'll use the [image crate](https://crates.io/crates/image) to load our tree. We already added to our dependencies in the first section, so all we have to do is use it.
 
-In `State`'s `new()` method add the following just after creating the `swap_chain`:
+In `State`'s `new()` method add the following just after configuring the `surface`:
 
 ```rust
 surface.configure(&device, &config);