Add views list note

docs/user_guide/searching/default_pages.rst

@@ -6,6 +6,8 @@ By default, Tripal will provide a search tool for every Tripal content type.  Wh
 
 These search tools will be available at ``/data_search/[content label]``, such as ``/data_search/mrna``.
 
+If you have the ``view_ui`` module enabled, you can find a list of all search views under **Structure --> Views**.
+
 .. figure:: ./default_pages.1.png
   :alt: An example mRNA search