Update copyright to 2021

Author: ashawley

LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright (c) 2014-2019 John Otander
+Copyright (c) 2014-2021 John Otander
 Copyright (c) 2014 Daniel Eden for animate.css
 Copyright (c) 2014 Brent Jackson for Basscss
 Copyright (c) 2013 Twitter, Inc for CSS copied from Bootstrap

_posts/2019-01-26-guide-to-forking-pixyll.md

@@ -43,14 +43,14 @@ The items above do not apply when you just copied and modified Pixyll in small w
 
 If you want to publish a fork of Pixyll under a different name but keeping it under the MIT license, then you should add your name to the copyright notices:
 
-    Copyright (c) 2019 Your Name
-    Copyright (c) 2014-2019 John Otander for Pixyll
+    Copyright (c) 2021 Your Name
+    Copyright (c) 2014-2021 John Otander for Pixyll
 
 However, if you want to publish a fork of Pixyll under a different name *and* a different license, then you should should still add your name to the copyright notices but have a section titled "Pixyll" at the bottom of your LICENSE file that preserves the copyright and license notices for Pixyll:
 
     Pixyll
 
-    Copyright (c) 2014-2019 John Otander
+    Copyright (c) 2014-2021 John Otander
 
     MIT License
 

_sass/_base.scss

@@ -8,7 +8,7 @@ aesthetic fluff.
 
 Built upon BASSCSS (https://basscss.com/).
 
-Crafted with <3 by John Otander (@4lpine) - ©2015-2019 John Otander
+Crafted with <3 by John Otander (@4lpine) - ©2015-2021 John Otander
 MIT License https://opensource.org/licenses/MIT
 
 */

css/pixyll.scss

@@ -5,7 +5,7 @@
 
 /*!
 * Pixyll - A simple, beautiful Jekyll theme that's mobile first.
-* Crafted with <3 by John Otander (@4lpine) - ©2015-2019 John Otander
+* Crafted with <3 by John Otander (@4lpine) - ©2015-2021 John Otander
 * @author John Otander <johnotander@gmail.com> (https://johno.com/)
 * @link https://github.com/johno/pixyll
 * @license MIT