added how to plugin custom model to docs too

README.md

@@ -308,7 +308,7 @@ class MyCustomisedModel(AbstractModelClass):
         self.compile_options = {"optimizer" = keras.optimizers.Adam()}
     ```
     
-### How to plug in the customised model into the workflow?
+## How to plug in the customised model into the workflow?
 * Make use of the `model` argument and pass `MyCustomisedModel` when instantiating a workflow.
 ```python
 from mlair.workflows import DefaultWorkflow

docs/_source/customise.rst

@@ -143,6 +143,20 @@ How to create a customised model?
               self.compile_options = {"optimizer" = keras.optimizers.Adam()}
 
 
+How to plug in the customised model into the workflow?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+* Make use of the :py:`model` argument and pass :py:`MyCustomisedModel` when instantiating a workflow.
+
+
+.. code-block:: python
+
+    from mlair.workflows import DefaultWorkflow
+
+    workflow = DefaultWorkflow(model=MyCustomisedModel)
+    workflow.run()
+
+
 Specials for Branched Models
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~