Types are appended to parameters in docstring

[stsievert]

When I view the docs for IncrementalSearchCV, I see

This is especially confusing with attributes that end in _:

[stsievert]

I'm unsure what's causing this: I think the docstrings follow the numpydoc standard:

dask-ml/dask_ml/model_selection/_incremental.py

Lines 641 to 650 in 92aca8c

	n_initial_parameters : int, default=10
	Number of parameter settings that are sampled.
	This trades off runtime vs quality of the solution.
	Alternatively, you can set this to ``"grid"`` to do a full grid search.
	decay_rate : float, default 1.0
	How quickly to decrease the number partial future fit calls.
	Higher `decay_rate` will result in lower training times, at the cost
	of worse models.