feat: Improve docstrings

openedx_lti_tool_plugin/deep_linking/forms.py

@@ -15,7 +15,9 @@ class DeepLinkingForm(forms.Form):
     """Deep Linking Form."""
 
     def __init__(self, *args: tuple, request=None, **kwargs: dict):
-        """Initialize class attributes.
+        """Class __init__ method.
+
+        Initialize class instance attributes and add `content_items` field.
 
         Args:
             *args: Variable length argument list.
@@ -71,11 +73,14 @@ def get_content_items_choice(self, course, request: HttpRequest) -> Tuple[str, s
         )
 
     def get_deep_link_resources(self) -> Set[Optional[DeepLinkResource]]:
-        """Get set of `DeepLinkResource` from cleaned `content_items` field.
+        """Get DeepLinkResource objects from this form `cleaned_data` attribute.
 
         Returns:
             Set of DeepLinkResource objects or an empty set
 
+        .. _LTI 1.3 Advantage Tool implementation in Python - LTI Message Launches:
+            https://github.com/dmitry-viskov/pylti1.3?tab=readme-ov-file#deep-linking-responses
+
         """
         return {
             DeepLinkResource().set_url(content_item)