Fixes #1812

[kuelumbus]

RDKit platform wheels are now available at PyPI and can be installed using

pip install rdkit

This PR updates the documentation. Fixes #1812

[IchiruTake]

I found there are two 'rdkit' and 'rdkit-pypi' on the PyPi server. So we just used pip install rdkit instead and ignore the rdkit-pypi ?

[greglandrum]

I found there are two 'rdkit' and 'rdkit-pypi' on the PyPi server. So we just used pip install rdkit instead and ignore the rdkit-pypi ?

I'm not sure what you are asking. If you are using pip, then pip install rdkit is correct, and that's what is in the updated documentation.