Type hint incorrectly suggests Dict is accepted as data parameter

[ferchaugupta]

The markdown_table.init() method has a misleading type hint for the data parameter:

data: Union[List[Dict], Dict]

However, the validation logic immediately rejects any Dict input:

if not isinstance(data, list) or not all(isinstance(elem, dict) for elem in data):
    raise ValueError("data is not of type list or elements are not of type dict")

The type hint should accurately reflect that only List[Dict] is accepted.