chore: minor changes

Signed-off-by: ale5000 <15793015+ale5000-git@users.noreply.github.com>

Author: ale5000-git

docs/conf.py

@@ -91,13 +91,13 @@ def setup(app):
 # Project information
 project = 'Google sync add-on'
 author = 'ale5000'
-copyright = '2016-2019, 2021-%Y ale5000'
+project_copyright = '2016-2019, 2021-%Y ale5000'
 release = get_version()
 version = release
 
 revision = get_revision()
 if revision:
-    copyright += f" | Revision: {revision}"
+    project_copyright += f" | Revision: {revision}"
 
 # General configuration
 needs_sphinx = '8.1'