Suggestion: Include new examples in release posts

[Isso4820]

When showcasing new features it would be useful to embed or link their relevant WebGL examples so that readers could immediately view and interact with them. It also immediately shows where to look to learn how to use new things.

Also a full list of new examples should be included in release posts, just like the list of all pull requests.

$ git diff v0.11.0 --name-only --diff-filter=A -- 'examples/*.rs'
examples/2d/2d_viewport_to_world.rs
examples/3d/3d_viewport_to_world.rs
examples/3d/deferred_rendering.rs
examples/3d/transmission.rs
examples/asset/custom_asset_reader.rs
examples/asset/processing/asset_processing.rs
examples/audio/pitch.rs
examples/ecs/one_shot_systems.rs
examples/shader/extended_material.rs
examples/time/time.rs
examples/time/virtual_time.rs
examples/ui/ui_material.rs

This is because sometimes examples are not introduced in the same release as features. For example *_viewport_to_world.rs examples were introduced in 0.12.0 but the actual feature dates back to 0.10.0.