Added changelog for Stencil8

CHANGELOG.md

@@ -143,6 +143,7 @@ Additionally `Surface::get_default_config` now returns an Option and returns Non
 - Native adapters can now use MSAA x2 and x8 if it's supported , previously only x1 and x4 were supported . By @39ali in [3140](https://github.com/gfx-rs/wgpu/pull/3140)
 - Implemented correleation between user timestamps and platform specific presentation timestamps via [`Adapter::get_presentation_timestamp`]. By @cwfitzgerald in [#3240](https://github.com/gfx-rs/wgpu/pull/3240)
 - Added support for `Features::SHADER_PRIMITIVE_INDEX` on all backends. By @cwfitzgerald in [#3272](https://github.com/gfx-rs/wgpu/pull/3272)
+- Implemented `TextureFormat::Stencil8`, allowing for stencil testing without depth components. By @Dinnerbone in [#3343](https://github.com/gfx-rs/wgpu/pull/3343)
 
 #### GLES
 
@@ -205,6 +206,7 @@ Additionally `Surface::get_default_config` now returns an Option and returns Non
 ### Examples
 
 - Log adapter info in hello example on wasm target by @JolifantoBambla in [#2858](https://github.com/gfx-rs/wgpu/pull/2858)
+- Added new example `stencil-triangles` to show basic use of stencil testing. By @Dinnerbone in [#3343](https://github.com/gfx-rs/wgpu/pull/3343)
 
 ### Testing/Internal