Add minor word

Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>

Author: encukou

peps/pep-0803.rst

@@ -45,7 +45,7 @@ Background
 ----------
 
 Python's Stable ABI, as defined in :pep:`384` and :pep:`652`, provides a way to
-compile extension modules that can be loaded on multiple versions of the
+compile extension modules that can be loaded on multiple minor versions of the
 CPython interpreter.
 Several projects use this to limit the number of
 :ref:`wheels <packaging:binary-distribution-format>` (binary artefacts)