This was mentioned in reply #718 (review)

PR adds two examples regarding instance extras:

• Using DXC(over FXC) on Windows, includes a script to download the required library files.
• Debugging using a graphics debugger like RenderDoc, includes a portable variant with a .cap file: works when your OS is setup to open .cap file with RenderDoc. Adds annotation and labels to the cube example.
• documents the function in docs.

todos:

• insert debug markers for the example
• add labels to the example so they show up during debugging
• fix more typos
• add hyperlinks to other parts of the docs
• update guide docs debug section?
• file issue with Dxc not using debug flags in wgpu-core (perhaps in v26?) ref: unable to get debug flags with Dxc gfx-rs/wgpu-native#487
• resolve arch, if needed?