v2021.1.3

Minor update to URLS within codebase and READMEs to reflect the updated organization name and transition to HEAR Benchmark from the NeurIPS challenge.

What's Changed

• Update org name by @jorshi in #370
• Version bump to 2021.1.3 by @jorshi in #371

Full Changelog: v2021.1.2...v2021.1.3