Features real world usage example

It would be great if features had brief real world usage examples in the beginning.

For example: Fragment Density Map Operations provides more control to help you achieve better visual quality for foveated rendering (XR), while maintaining framerate performance.

By the way, looks great! :)

No file or test is named. Start by locating the feature descriptions for Fragment Density Map Operations and review how feature sections are organized; done means adding brief real-world usage examples at the beginning of the relevant feature descriptions without changing their technical content.

Written by the indexing model from the issue text.