PEP 836: minor edits (#5028)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: neutrinoceros

peps/pep-0836.rst

@@ -65,7 +65,7 @@ At a high level, these are our milestones and goals for the JIT over the next
     middle-end/optimizer, and Copy and Patch backend), remain almost
     completely unchanged from CPython 3.15. **In other words, only what
     the JIT selects to compile is evolving from traces to methods,
-    nothing else is changing from CPython 3.15.**.
+    nothing else is changing from CPython 3.15.**
 
   * :ref:`Make the JIT compatible with free-threading <836-free-threading>`. We
     believe that this is important to prioritize early on in the next phase of
@@ -170,7 +170,7 @@ stencil generation.
 
 The JIT has garnered many excellent community contributors, and this has picked
 up momentum in recent months. We are extremely grateful to these volunteers. A
-sizable and active community now exists today, as evidenced by the contributor
+sizable and active community exists today, as evidenced by the contributor
 list in CPython 3.15's :ref:`What's New entry for the JIT
 <whatsnew315-jit>`. The JIT team
 has learnt important lessons to attract new contributors, such as making