Merge #1179

1179: Fix depth bias documentation r=kvark a=kvark

**Connections**
Follow-up to #1178

**Description**
Clippy complained...

**Testing**
No need

Co-authored-by: Dzmitry Malyshau <kvarkus@gmail.com>

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Change Log
 
-## v0.7 (TBD)
+## v0.7 (2020-08-30)
   - Major API changes:
     - `RenderPipelineDescriptor`
     - `BindingType`

wgpu-types/src/lib.rs

@@ -1592,6 +1592,7 @@ pub struct DepthStencilState {
     /// Stencil state.
     #[cfg_attr(any(feature = "trace", feature = "replay"), serde(default))]
     pub stencil: StencilState,
+    /// Depth bias state.
     #[cfg_attr(any(feature = "trace", feature = "replay"), serde(default))]
     pub bias: DepthBiasState,
     /// If enabled polygon depth is clamped to 0-1 range instead of being clipped.