bug: unclear instructions on accessing the binary

### ffmpeg-static version

ffmpeg-static@5.2.0

### Node.js version

v20.12.1

### operating system and/or environment

GitHub Codespace & Yarn

### What happened?

Getting started with the NPM package created from this repo was quite difficult as I did not find the binaries in the folder `./node_modules/.bin`. Instead, I was only able to access ffmpeg at the path `./node_modules/ffmpeg-static/ffmpeg`, but this seems more cumbersome than necessary to me if we could provide a symlink to the binary in the folder `.bin`. Possibly I just misunderstood how to work with this package.

If a hint had been in the README file, no big deal either. Would you mind me adding usage instructions to the file via PR?