align R and Python version numbers

Author: thierrymoudiki

ahead/demo/thierrymoudiki_20240224_ahead_python_and_R.md

@@ -117,7 +117,7 @@ def install_packages():
 from codecs import open
 from os import path
 
-__version__ = "0.12.0"
+__version__ = "0.12.1"
 
 here = path.abspath(path.dirname(__file__))