Update doc

Author: stellasia

docs/source/user_guide_kg_builder.rst

@@ -219,6 +219,16 @@ chunk overlap in the text splitter component:
     )
 
 
+Run Parameters
+--------------
+
+SimpleKGPipeline also accepts addition runtime parameters:
+
+- ``document_path`` (str): only used when ``from_pdf=False``, this is the path property of the ``Document`` node.
+- ``document_metadata`` (dict): each item will be saved as a property attached to the ``Document`` node.
+
+
+
 Using a Config file
 ===================
 

examples/build_graph/simple_kg_builder_from_pdf.py

@@ -58,7 +58,7 @@ async def define_and_run_pipeline(
         file_path=str(file_path),
         # optional, add document metadata, each item will
         # be saved as a property of the Document node
-        document_metadata={"author": "J. K. Rowling"},
+        # document_metadata={"author": "J. K. Rowling"},
     )