fix doc display

docs/reference/core/api_permissions.md

@@ -1 +0,0 @@
-::: core.auth.api_permissions

docs/reference/core/auth.md

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+## Backend
+
+::: core.auth.backends
+    handler: python
+    options:
+        heading_level: 3
+        members:
+            - SithModelBackend
+
+## Mixins
+
+::: core.auth.mixins
+    handler: python
+    options:
+        heading_level: 3
+        members:
+            - can_edit_prop
+            - can_edit
+            - can_view
+            - CanCreateMixin
+            - CanEditMixin
+            - CanViewMixin
+            - FormerSubscriberMixin
+            - PermissionOrAuthorRequiredMixin
+
+
+## API Permissions
+
+::: core.auth.api_permissions
+    handler: python
+    options:
+        heading_level: 3