fix(footer): update copyright notice and remove template

Update the copyright notice to indicate the new licensing and remove the
now unnecessary template.

Signed-off-by: Randolph Sapp <[email protected]>

Author: StaticRocket

_templates/footer.html

@@ -16,6 +16,7 @@
 import sys
 import os
 import importlib
+from datetime import datetime
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -54,8 +55,8 @@
 
 # The encoding of source files.
 #source_encoding = 'utf-8-sig'
-copyright = '© Copyright 1995-2024'
 author = 'Texas Instruments Incorporated'
+copyright = f"1995-{datetime.now().year} {author}, CC-BY-SA-4.0"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.