whatsnew: pyvenv --copies option.

Also added the missing documentation for new new option.
diff --git a/Doc/using/venv-create.inc b/Doc/using/venv-create.inc
index 997e24b..879ab7a 100644
--- a/Doc/using/venv-create.inc
+++ b/Doc/using/venv-create.inc
@@ -38,6 +38,8 @@
                              virtual environment.
       --symlinks             Try to use symlinks rather than copies, when symlinks
                              are not the default for the platform.
+      --copies               Try to use copies rather than symlinks, even when
+                             symlinks are the default for the platform.
       --clear                Delete the environment directory if it already exists.
                              If not specified and the directory exists, an error is
                              raised.
@@ -47,7 +49,8 @@
                              environment (pip is bootstrapped by default)
 
 .. versionchanged:: 3.4
-   Installs pip by default, added the ``--without-pip`` option
+   Installs pip by default, added the ``--without-pip``  and ``--copies``
+   options
 
 If the target directory already exists an error will be raised, unless
 the ``--clear`` or ``--upgrade`` option was provided.