[BUG] License actually claims Yelp owns the copyright

[blu3mania]

Describe the bug
In LICENSE, it claims Yelp is the copyright owner, which can't be correct, right?

Copyright 2017-2018 Yelp Inc.

[killuazhu]

This repo is forked from https://github.com/Yelp/detect-secrets and licensed under Apache 2.0. We would need to preserve the copyright and license notices.