Move HelpPanel documentation to avoid redefinition of wagtail.admin.edit_handlers module

docs/reference/pages/panels.rst

@@ -91,6 +91,27 @@ FieldRowPanel
 
         A class to apply to the FieldRowPanel as a whole
 
+HelpPanel
+---------
+
+.. class:: HelpPanel(content='', template='wagtailadmin/edit_handlers/help_panel.html', heading='', classname='')
+
+    .. attribute:: HelpPanel.content
+
+        HTML string that gets displayed in the panel.
+
+    .. attribute:: HelpPanel.template
+
+        Path to a template rendering the full panel HTML.
+
+    .. attribute:: HelpPanel.heading
+
+        A heading for the help content.
+
+    .. attribute:: HelpPanel.classname
+
+        String of CSS classes given to the panel which are used in formatting and scripted interactivity.
+
 PageChooserPanel
 ----------------
 
@@ -239,30 +260,6 @@ SnippetChooserPanel
     See :ref:`snippets` for more information.
 
 
-HelpPanel
----------
-
-.. module:: wagtail.admin.edit_handlers
-
-.. class:: HelpPanel(content='', template='wagtailadmin/edit_handlers/help_panel.html', heading='', classname='')
-
-    .. attribute:: HelpPanel.content
-
-        HTML string that gets displayed in the panel.
-
-    .. attribute:: HelpPanel.template
-
-        Path to a template rendering the full panel HTML.
-
-    .. attribute:: HelpPanel.heading
-
-        A heading for the help content.
-
-    .. attribute:: HelpPanel.classname
-
-        String of CSS classes given to the panel which are used in formatting and scripted interactivity.
-
-
 Built-in Fields and Choosers
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~