Add "Media coverage" section to the README, with relevant talks, podcasts, blog posts, etc.

[obi1kenobi]

Figure out the best way to lay out such a section to make it the most appealing and effective it can be.

Decide if we can/should use screenshots, YouTube embeds, promotional posters (e.g. from podcast episodes) or other media to promote each entry, or if that might make things too cluttered.

Resources to include:

• cargo-semver-checks with Predrag Gruevski - Rustacean Station
• Trustfall and cargo-semver-checks with Predrag Gruevski - RustShip #2
• SemVer in Rust: Breakage, Tooling, and Edge Cases - FOSDEM 2024 Rust Dev Room -- or in blog form
• How Database Tricks Sped up Rust Linting Over 2000x by Predrag Gruevski - P99 CONF 2023 -- or in blog form
• Checking SemVer in the presence of #[doc(hidden)] items
• SemVer violations are common, better tooling is the answer
• Breaking semver in Rust by adding a private type, or by adding an import

Possibly also include high-profile mentions in social media posts, GitHub issues, or as part of talks on other topics that still touch on semver-checking. For example, I believe both Luca Palmieri and Jon Gjengset have mentioned cargo-semver-checks in positive terms in their talks, such as this one.