added a note on python 3.12 requirement

Author: oliviakowalczyk

README.md

@@ -22,6 +22,9 @@ Copyright (C) 1991,1994-2024 Wellcome Centre for Human Neuroimaging
 
 ## Installation instructions: 
 0. Install Python and Pip. Python installation made from Microsoft Store on Windows will not work (raises DeclarativeService.dll not found), install it from Python website. 
+> [!WARNING]
+> spm-python currently requires Python 3.12.
+
 1. Install [Matlab Runtime 2024b](https://uk.mathworks.com/products/compiler/matlab-runtime.html) 
 2. Install SPM:
    ```python