Added Project-level Overrides How-To to docs.

docs/source/how-tos.rst

@@ -0,0 +1,28 @@
+=======
+How Tos
+=======
+
+
+Project-level Overrides
+=======================
+
+Maybe ``CRUDView`` doesn't work exactly how you want. Maybe you need to
+override something whilst experimenting.
+
+You can add a base-class of your own to add project-level overrides.
+
+In your ``views.py``::
+
+    from neapolitan.views import CRUDView as BaseCRUDView
+
+
+    class CRUDView(BaseCRUDView):
+        # Add your overrides here.
+
+
+    class MyModelCRUDView(CRUDView):
+        model = "MyModel"
+        fields = ["name", "description"]
+
+By defining your base-class like this, you can revert to Neapolitan's class
+simply by commenting it out, or deleting it, and adjusting the import.

docs/source/index.rst

@@ -25,6 +25,7 @@ Contents
     tutorial
     crud-view
     templates
+    how-tos
 
 
 A quick look