[rs] Fix typos it's -> its

wgpu/src/lib.rs

@@ -980,7 +980,7 @@ pub enum BindingResource<'a> {
 
 /// Operation to perform to the output attachment at the start of a renderpass.
 ///
-/// The render target must be cleared at least once before it's content be loaded.
+/// The render target must be cleared at least once before its content is loaded.
 #[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)]
 #[cfg_attr(feature = "trace", derive(serde::Serialize))]
 #[cfg_attr(feature = "replay", derive(serde::Deserialize))]

wgpu/src/util/device.rs

@@ -101,7 +101,7 @@ impl DeviceExt for crate::Device {
 
                 // When uploading mips of compressed textures and the mip is supposed to be
                 // a size that isn't a multiple of the block size, the mip needs to be uploaded
-                // as it's "physical size" which is the size rounded up to the nearest block size.
+                // as its "physical size" which is the size rounded up to the nearest block size.
                 let mip_physical = mip_size.physical_size(desc.format);
 
                 // All these calculations are performed on the physical size as that's the