more docs

docs/multitask.md

@@ -1,5 +1,18 @@
 # MultiTask 
 
-We define a helper function `MultiTask` that dynamitcally creates a new schema that has a task attribute defined as a list of the task subclass, it including some prebuild prompts and allows us to avoid writing some extra code.
+Defining a task and creating a list of classes is a common enough pattern that we define a helper function `MultiTask` that dynamitcally creates a new schema that has a task attribute defined as a list of the task subclass, it including some prebuild prompts and allows us to avoid writing some extra code.
+
+!!! example "Extending user details"
+
+    Using the previous example with extracting `UserDetails` we might want to extract multiple users rather than a single user, `MultiTask` makes it easy!
+
+    ```python
+    class UserDetails(OpenAISchema):
+        """Details of a user"""
+        name: str = Field(..., description="users's full name")
+        age: int
+    
+    MultiUserDetails = MultiTask(UserDetails)
+    ```
 
 ::: openai_function_call.dsl.multitask