Schema key containing `-` not producing matches

[vesauimonen]

Problem

Schema key containing - is not producing any matches.

Reproduction

from linkify_it import LinkifyIt

linkify = LinkifyIt().add('foo-bar:', 'http:')
print(linkify.test('Check foo-bar://baz'))  # False

For comparison, the original linkify-it:

const linkify = require('linkify-it')();

linkify.add('foo-bar:', 'http:');
console.log(linkify.test('Check foo-bar://baz'));  // true

[tsutsu3]

Thanks, I'll fix it.