Minor nits to whats new tail call wording (#130912)

Fidget-Spinner · web-flow · commit fe186d76cfdd · 2025-03-11T10:57:35.000+08:00
diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst
@@ -297,7 +297,7 @@ For further information on how to build Python, see
 
 .. attention::
 
-    This section previously reported a 9-15% geomean speedup. This number has since been
+    This section previously reported a 9-15% geometric mean speedup. This number has since been
     cautiously revised down to 3-5%. While we expect performance results to be better
     than what we report, our estimates are more conservative due to a
     `compiler bug <https://github.com/llvm/llvm-project/issues/106846>`_ found in
