Apply suggestions from code review

Co-authored-by: Victor Stinner <vstinner@python.org>

Author: corona10

Doc/library/mmap.rst

@@ -332,7 +332,7 @@ To map anonymous memory, -1 should be passed as the fileno along with the length
 
       Annotate the memory map with the given *name* for easier identification
       in ``/proc/<pid>/maps`` if the kernel supports the feature and :option:`-X dev <-X>` is passed
-      to the Python or Python is built in :ref:`debug mode <debug-build>`
+      to Python or if Python is built in :ref:`debug mode <debug-build>`
       The length of *name* must not exceed 67 bytes.
 
       .. availability:: Linux >= 5.17

Misc/NEWS.d/next/Library/2025-12-10-02-31-43.gh-issue-142419.C8_LES.rst

@@ -1,3 +1,3 @@
-:meth:`mmap.mmap.set_name` method added to annotation an anonymous memory map
+:meth:`mmap.mmap.set_name` method added to annotate an anonymous memory map
 if Linux kernel supports ``PR_SET_VMA_ANON_NAME`` (Linux 5.17 or newer).
 Patch by Donghee Na.