Clarify the name of plugin used in /-/static-plugins/

docs/plugin_hooks.rst

@@ -244,6 +244,8 @@ you have one:
             "/-/static-plugins/your-plugin/app.js"
         ]
 
+Note that `your-plugin` here should be the hyphenated plugin name - the name that is displayed in the list on the `/-/plugins` debug page.
+
 If your code uses `JavaScript modules <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules>`__ you should include the ``"module": True`` key. See :ref:`customization_css_and_javascript` for more details.
 
 .. code-block:: python