Align style with rest of bullet points

Author: Fidget-Spinner

Doc/whatsnew/3.15.rst

@@ -74,8 +74,7 @@ Summary -- Release highlights
 * :pep:`782`: :ref:`A new PyBytesWriter C API to create a Python bytes object
   <whatsnew315-pep782>`
 * :ref:`Improved error messages <whatsnew315-improved-error-messages>`
-* The :ref:`JIT compiler <whatsnew315-jit>` has been significantly upgraded,
-  with 3-4% geometric mean performance improvement
+* :ref:`The JIT compiler has been significantly upgraded <whatsnew315-jit>`
 
 
 New features
@@ -857,8 +856,8 @@ csv
 Upgraded JIT compiler
 =====================
 
-Results from the `pyperformance
-  <https://github.com/python/pyperformance>`__ benchmark suite report
+Results from the `pyperformance <https://github.com/python/pyperformance>`__
+benchmark suite report
 `3-4% <https://github.com/facebookexperimental/free-threading-benchmarking/blob/main/results/bm-20251214-3.15.0a2%2B-6cddf04-JIT/bm-20251214-vultr-x86_64-python-6cddf04344a1e8ca9df5-3.15.0a2%2B-6cddf04-vs-base.svg>`__
 geometric mean performance improvement for the JIT over the standard CPython
 interpreter built with all optimizations enabled. The speedups for JIT