Add Napi-RS under new category (cross-platform integration)

[robinrodricks]

Hi there! Thanks for running this awesome list.

This PR is to add NAPI-RS to a new "cross-platform integration" section.

By submitting this pull request, I promise I have read the contribution guidelines twice and ensured my submission follows it. I realize not doing so wastes the maintainers' time that they could have spent making the world better. 🖖

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[sindresorhus]

I prefer to not create categories until there are at least two entries for it.

[robinrodricks]

I wanted to add these as well, all major projects, all under the same category:

• Edge.js - Run .NET and Node.js code in-process on Windows, MacOS, and Linux
• DotNetJS - Consume C# libraries in Node.js with comfort
• Neon - Rust bindings for writing safe and fast native Node.js modules.

If you approve these then I will add all to the same PR. But normally you like each project in a new PR so I was gonna submit them after this gets approved.

[robinrodricks]

@sindresorhus Can you let me know pls?

[sindresorhus]

👍

[robinrodricks]

What does that mean, are you gonna approve this, or should I edit the PR to add all 4 projects?

[sindresorhus]

Add all to this PR.

[robinrodricks]

@sindresorhus I have added 4 projects, please check.

[robinrodricks]

Thank you.