Update DataSource example
@@ -68,7 +68,7 @@ pub struct EmptyFields;
/// let mut connection = Connection::new(start > 0, end < 10000);
/// connection.append(
/// (start..end).into_iter().map(|n|
-/// Edge::new_with_additional_fields(n, n as i32, Diff{ diff: (10000 - n) as i32 })),
+/// Edge::with_additional_fields(n, n as i32, Diff{ diff: (10000 - n) as i32 })),
/// );
/// Ok(connection)
/// }
