docs: add community projects to README.md (#884)

Co-authored-by: Daniel Roe <daniel@roe.dev>

Author: trueberryless

README.md

@@ -156,6 +156,8 @@ We welcome contributions – please do feel free to explore the project and
 - [npm-alt](https://npm.willow.sh/) – An alternative npm package browser
 - [npkg.lorypelli.dev](https://npkg.lorypelli.dev/) – An alternative frontend to npm made with as little client-side JavaScript as possible
 - [vscode-npmx](https://github.com/npmx-dev/vscode-npmx) – VSCode extension for npmx
+- [nxjt](https://nxjt.netlify.app) – npmx Jump To: Quickly navigate to npmx common webpages.
+- [npmx-digest](https://npmx-digest.trueberryless.org/) – An automated news aggregation website that summarizes npmx activity from GitHub and Bluesky every 8 hours.
 
 If you're building something cool, let us know! 🙏