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`bin/addzope2user` only exists when the instance is installed in the virtualenv. If it is in a different directory there is only `bin/zopectl`.
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doc/WSGI.rst

@@ -153,13 +153,11 @@ Finally, configure the WSGI server:
 Set up the Admin User
 ---------------------
 
-Before starting the WSGI server, run the ``addzope2user`` script to configure
-the administrative user.
+Before starting the WSGI server, add an administrative user:
 
 .. code-block:: sh
 
-   $ bin/addzope2user admin <yourpasswordhere>
-   No handlers could be found for logger "ZODB.FileStorage"
+   $ bin/zopectl adduser admin <yourpasswordhere>
    User admin created.