Update Leo's affiliation in the Authors file (#397)

From Liverpool to São Paulo

AUTHORS.md

@@ -21,5 +21,5 @@ order by last name) and are considered "The Pooch Developers":
 * [Daniel Shapero](https://github.com/danshapero) - Polar Science Center, University of Washington Applied Physics Lab, USA (ORCID: [0000-0002-3651-0649](https://www.orcid.org/0000-0002-3651-0649))
 * [Santiago Soler](https://github.com/santisoler) - CONICET, Argentina; Instituto Geofísico Sismológico Volponi, Universidad Nacional de San Juan, Argentina (ORCID: [0000-0001-9202-5317](https://www.orcid.org/0000-0001-9202-5317))
 * [Matthew Turk](https://github.com/matthewturk) - University of Illinois at Urbana-Champaign, USA (ORCID: [0000-0002-5294-0198](https://www.orcid.org/0000-0002-5294-0198))
-* [Leonardo Uieda](https://github.com/leouieda) - University of Liverpool, UK (ORCID: [0000-0001-6123-9515](https://www.orcid.org/0000-0001-6123-9515))
+* [Leonardo Uieda](https://github.com/leouieda) - Universidade de São Paulo, Brazil (ORCID: [0000-0001-6123-9515](https://www.orcid.org/0000-0001-6123-9515))
 * [Antonio Valentino](https://github.com/avalentino)