added 0.15 news doc

docs/.vuepress/config.js

@@ -61,6 +61,7 @@ module.exports = {
                 title: 'News',
                 collapsable: true,
                 children: [
+                    '/news/0.15/',
                     '/news/0.14/',
                     '/news/0.13/',
                     '/news/0.12/',

docs/news/0.15/readme.md

@@ -0,0 +1,37 @@
+# Update to 0.15!
+
+This is a pretty minor update for this tutorial, but there are a few things to consider.
+
+1. A `view_formats` field was added to `TextureDescriptor` and `SurfaceDescriptor`. This allows you to specify different `TextureFormat`s that can be used when creating `TextureView`s. At time of writing this pretty much only allows you to switch between using SRGB and linear formats. For example:
+```rust
+TextureDescriptor {
+    // other fields...
+    format: wgpu::TextureFormat::Rgba8UnormSrgb,
+    view_formats: &[wgpu::TextureFormat::Rgba8Unorm],
+}
+```
+The format used to create the `Texture` will always be supported, so you don't have to specify it.
+
+2. The method of acquiring texture formats supported by the `Surface` has changed. Previously there was a `get_supported_formats()` that would return a `Vec<TextureFormat>`. Now `Surface` has a `get_capabilities()` method. This will return a `SurfaceCapabilities` object that will have the supported formats as well as some other fields that you can checkout [here](https://docs.rs/wgpu/latest/wgpu/struct.SurfaceCapabilities.html). I'm using it in the tutorial like this:
+```rust
+let surface_caps = surface.get_capabilities(&adapter);
+// Shader code in this tutorial assumes an Srgb surface texture. Using a different
+// one will result all the colors comming out darker. If you want to support non
+// Srgb surfaces, you'll need to account for that when drawing to the frame.
+let surface_format = surface_caps.formats.iter()
+    .copied()
+    .filter(|f| f.describe().srgb)
+    .next()
+    .unwrap_or(surface_caps.formats[0]);
+let config = wgpu::SurfaceConfiguration {
+    usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
+    format: surface_format,
+    width: size.width,
+    height: size.height,
+    present_mode: surface_caps.present_modes[0],
+    alpha_mode: surface_caps.alpha_modes[0],
+    view_formats: vec![],
+};
+```
+
+As always let me know if I missed anything. You can check out the full changelog for 0.15 [here](https://github.com/gfx-rs/wgpu/blob/master/CHANGELOG.md#wgpu-0150-2023-01-25)