docs(readme): update browser support

Baseline 2025 newly available.

Since June 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

More infos: https://developer.mozilla.org/en-US/docs/Web/API/Highlight

Author: andreruffert

README.md

@@ -84,8 +84,8 @@ Full list of all [languages supported](https://prismjs.com/#supported-languages)
 ## Browser Support
 
 <picture>
-  <source media="(prefers-color-scheme: dark)" srcset="https://web-platform-dx.github.io/web-features/assets/img/baseline-limited-word-dark.svg">
-  <img src="https://web-platform-dx.github.io/web-features/assets/img/baseline-limited-word.svg" width="224" height="63" alt="Baseline limited availability wordmark">
+  <source media="(prefers-color-scheme: dark)" srcset="https://web-platform-dx.github.io/web-features/assets/img/baseline-newly-word-dark.svg">
+  <img src="https://web-platform-dx.github.io/web-features/assets/img/baseline-newly-word.svg" width="224" height="63" alt="Baseline newly availability wordmark">
 </picture>
 
 - [CSS Custom Highlight API][caniuse_mdn-api_highlight]