docs: fix GitHub URL, update copyright year and email address

Author: timlnx

docsite/source/contact.rst

@@ -29,8 +29,4 @@ ahead:
  * :ref:`Contributing <contributing>`
 
 **E-Mail**
- If you want to contact me directly, `clone the project
- <https://github.com/timlnx/bitmath>`_ and look at any of `my
- bitmath commits
- <https://github.com/timlnx/bitmath/commits/master?author=tbielawa>`_
- to find my email address.
+ You can reach me directly at `bitmath@lnx.cx <mailto:bitmath@lnx.cx>`_.

docsite/source/copyright.rst

@@ -2,7 +2,7 @@ Copyright
 #########
 The MIT License (MIT)
 
-Copyright © 2014-2016 Tim Case <timbielawa@gmail.com>
+Copyright © 2014-2026 Tim Case <bitmath@lnx.cx>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

docsite/source/index.rst.in

@@ -65,7 +65,7 @@ bytes. When you see file sizes or transfer rates in your web browser,
 most of the time what you're really seeing are the base-2 sizes/rates.
 
 **Don't Forget!** The source for bitmath `is available on GitHub
-<https://github.com/tbielawa/bitmath>`_.
+<https://github.com/timlnx/bitmath>`_.
 
 And did we mention there are nearly 300 unit tests? `Check them out for
 yourself <https://github.com/tbielawa/bitmath/tree/master/tests>`_.