return field should be named "returns"

[sujuka99]

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Describe the bug

When Docstring format is sphinx the generated field :return: should be named :returns: instead.

Versions (please complete the following information):

• autoDocstring Version: 0.6.1
• Operating System: Linux
• Vscode Version: 1.77.3

Original Code (with line to generate on):

def example_func():
	# generate on this line
	return "something"

Expected Result:

def example_func():
    """_summary_

    :returns: _description_
    :rtype: _type_
    """
    return True

Actual Result:

def example_func():
    """_summary_

    :return: _description_
    :rtype: _type_
    """
    return True

Additional context Official Sphinx documentation