Incorrect @swc/jest description

[Peter Franken]

From

website/pages/docs/usage/jest.md

Line 3 in 35da4af

 To make your Jest tests run faster, you can swap out the default JavaScript-based runner (`ts-jest`) for a [drop-in Rust replacement](https://github.com/swc-project/jest) using SWC. 

:

To make your Jest tests run faster, you can swap out the default JavaScript-based runner (ts-jest) for a drop-in Rust replacement using SWC.

The "default" Jest runner for TypeScript is actually¹ Babel with @babel/preset-typescript.

Neither @swc/jest nor the Babel TypeScript setup support type-checking, whilst ts-jest does.

This makes @swc/jest a drop-in replacement for the actual default runner, but not for the one that is mentioned :)

Footnotes

1. https://jestjs.io/docs/getting-started#using-typescript ↩

[Lee Robinson]

Fixed here - thank you!

#139