Merge pull request #106 from jhlegarreta/doc/fix-copyright-start-year

DOC: Make the copyright start year match the initial commit year

Author: mnoergaard

docs/conf.py

@@ -87,7 +87,7 @@
 # General information about the project.
 project = 'petprep'
 author = 'The PETPrep developers'
-copyright = f'2016-, {author}'
+copyright = f'2023-, {author}'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the