Problem with name field when using `configlet create ---concept-exercise

It's very useful, except in `config.sys` the name just repeats the slug. I think we need spaces and initial caps?

This is the result of `bin/configlet create --concept-exercise elyses-analytic-enchantments`

```json
{
"slug": "elyses-analytic-enchantments",
"name": "elyses-analytic-enchantments",
"uuid": "22956a33-b6cb-45af-9304-193074680f7c",
"concepts": [],
"prerequisites": []
}
```

See also the [forum duscussion](https://forum.exercism.org/t/slight-problem-with-configlet-create-concept-exercise/13072).