Update Doc/library/zipfile.rst

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

Author: Wulian233

Doc/library/zipfile.rst

@@ -528,7 +528,8 @@ ZipFile Objects
 
    .. versionchanged:: 3.14
       Now respects the :envvar:`SOURCE_DATE_EPOCH` environment variable. If set, it uses this
-      value as the modification timestamp for the file written into the ZIP archive.
+      value as the modification timestamp for the file written into the ZIP archive,
+      instead of using the current time.
 
 .. method:: ZipFile.mkdir(zinfo_or_directory, mode=511)