documented method does not work
your readme says use this script target to run:
```
{
  "scripts": {
    "font": "svgtofont --sources ./svg --output ./font --fontName uiw-font"
  },
}
```
but `svgtofont` does not exist.  It is not installed as a linked bin under `node_modules/.bin` because your package.json has no [`bin`](https://docs.npmjs.com/files/package.json#bin) directive. 

as a workaround, i was able to get it to run by referencing your cli directly as in:
```
{
  "scripts": {
    "font": "node ./node_modules/svgtofont/bin/cli.js --sources ./svg --output ./font --fontName uiw-font"
  },
}
```