Merge pull request #550 from kingwingfly/patch-1

fix a spell mistake at docs/beginner/tutorial2-surface/README.md

docs/beginner/tutorial2-surface/README.md

@@ -549,7 +549,7 @@ The `RenderPassColorAttachment` has the `view` field, which informs `wgpu` what
 
 The `resolve_target` is the texture that will receive the resolved output. This will be the same as `view` unless multisampling is enabled. We don't need to specify this, so we leave it as `None`.
 
-The `ops` field takes a `wpgu::Operations` object. This tells wgpu what to do with the colors on the screen (specified by `view`). The `load` field tells wgpu how to handle colors stored from the previous frame. Currently, we are clearing the screen with a bluish color. The `store` field tells wgpu whether we want to store the rendered results to the `Texture` behind our `TextureView` (in this case, it's the `SurfaceTexture`). We use `StoreOp::Store` as we do want to store our render results.
+The `ops` field takes a `wgpu::Operations` object. This tells wgpu what to do with the colors on the screen (specified by `view`). The `load` field tells wgpu how to handle colors stored from the previous frame. Currently, we are clearing the screen with a bluish color. The `store` field tells wgpu whether we want to store the rendered results to the `Texture` behind our `TextureView` (in this case, it's the `SurfaceTexture`). We use `StoreOp::Store` as we do want to store our render results.
 
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