Build command in generated README.md does not work with Bun

[Hornwitser]

Describe the bug

When creating a project using bun create vue the generated readme contains the following instructions to run bun build in order to compile and minify the project.

### Compile and Minify for Production

```sh
bun build
```

But trying to run this gives a confusing error message

> bun build
bun build v1.1.34 (5e5e7c60)
error: Missing entrypoints. What would you like to bundle?

Usage:
  $ bun build <entrypoint> [...<entrypoints>] [...flags]

To see full documentation:
  $ bun build --help

This doesn't work because Bun has a built-in build command which gets executed instead of the build script defined in package.json.

Expected behavior

The generated readme uses bun run build instead, as this will run the build script instead of the built-in bun bundler.

How to reproduce

1. Run bun create vue
2. Accept all defaults
3. Observe that vue-project/README.md mentions using bun build instead of bun run build
4. Observe that running bun build gives an error message instead of invoking the build script.

[cexbrayat]

Hi @Hornwitser

👍 Can you open a PR to fix this? We will gladly review and merge it!

The readme generator is in

create-vue/utils/generateReadme.ts

Line 11 in 9201bdb

export default function generateReadme({

I think there are no unit tests for this function, but you can add some in __test__ if you're up to it.