Update copyright and credits

Author: JedWatson

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2020 Jed Watson
+Copyright (c) 2021 Jed Watson
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -154,8 +154,8 @@ Thank you to everyone who has contributed to this project. It's been a wild ride
 
 If you like React Select, you should [follow me on twitter](https://twitter.com/jedwatson)
 
-Shout out to [Joss Mackison](https://github.com/jossmac), [Charles Lee](https://github.com/gwyneplaine), [Ben Conolly](https://github.com/Noviny), [Dave Brotherstone](https://github.com/bruderstein), [Brian Vaughn](https://github.com/bvaughn), and the Atlassian Design System team ❤️
+Shout out to all the people who've made it possible, including [Joss Mackison](https://github.com/jossmac), [Charles Lee](https://github.com/gwyneplaine), [Ben Conolly](https://github.com/Noviny), [Tom Walker](https://github.com/bladey), [Nathan Bierema](https://github.com/Methuselah96), [Eric Bonow](https://github.com/ebonow), [@mitchellhamilton](https://github.com/mitchellhamilton), [Dave Brotherstone](https://github.com/bruderstein), [Brian Vaughn](https://github.com/bvaughn), and the Atlassian Design System team ❤️
 
 ## License
 
-MIT Licensed. Copyright (c) Jed Watson 2020.
+MIT Licensed. Copyright (c) Jed Watson 2021.

docs/App/Footer.js

@@ -58,7 +58,7 @@ export default function Footer(): Node {
   return (
     <Wrapper>
       <Container>
-        <p>Copyright © Jed Watson, 2019. MIT Licensed.</p>
+        <p>Copyright © <A href="https://twitter.com/JedWatson">Jed Watson</A>, 2021. MIT Licensed.</p>
         <p>
           Thanks to <A href="https://www.thinkmill.com.au">Thinkmill</A> and{' '}
           <A href="https://www.atlassian.com">Atlassian</A> for supporting this