Licenses should be listed without the hyphen

Like this:

```
licenses:
  repo: license
```
With the hyphen it gets rendered as a new array inside the licenses array:
`{ licenses => { { repo => name}, {repo => name} } }`
Without the hyphens we get key-value pairs in the first layer of the array:
`{ licenses => { repo => name, repo => name } }`
In the first world we would have to loop through the licenses array twice, the other
way, we only have to loop once.
Merge pull request #78 from 18F/license-format-fix

Licenses should be listed without the hyphen