DOC: inconsistent default values in the initialiser for RangeIndex

[natmokval]

• closes DOC: inconsistent default values in the initialiser for RangeIndex #62899

Updated the docstring in the initialiser for RangeIndex.
I noticed, if step parameter is None, it defaults to 1. We have a similar case in slice_indexer

pandas/pandas/core/indexes/base.py

Lines 6637 to 6644 in ce3298b

	Parameters
	----------
	start : label, default None
	If None, defaults to the beginning.
	end : label, default None
	If None, defaults to the end.
	step : int, default None
	If None, defaults to 1.

should we also clarify for step parameter: If None, defaults to 1.?

[cmp0xff]

Hi, I would like to mention that dtype also defaults to None in the source code.

[natmokval]

Hi, I would like to mention that dtype also defaults to None in the source code.

thanks, I added to dtype default None.

[mroeschke]

Thanks @natmokval