Add MNE Package link.

[mathblin]

Major changes

Just a link and small description into the Readme for an interesting open source data analytic package.

What is this Python project?

MNE is a Python based Package for neurophysiological data analysis and more.

What's the difference between this Python project and similar ones?

As many science Python package and libraries, it has Machine Learning application. It can also give data visualization graphs.

You'll be able to visualize your EEG, MEG data and more.

Tutorials are given on the website.

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