Update README.md

Author: Nikola Jajcay

README.md

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-[![Build Status](https://github.com/jajcayn/pygpso/workflows/pytest/badge.svg)](https://github.com/jajcayn/pygpso/actions)![](https://img.shields.io/github/v/release/jajcayn/pygpso) [![codecov](https://codecov.io/gh/jajcayn/pygpso/branch/master/graph/badge.svg)](https://codecov.io/gh/jajcayn/pygpso) [![PyPI license](https://img.shields.io/pypi/l/pygpso.svg)](https://pypi.python.org/pypi/pygpso/) [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jajcayn/pygpso.git/master?filepath=examples) [![DOI](https://zenodo.org/badge/236983676.svg)](https://zenodo.org/badge/latestdoi/236983676) [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
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 # pyGPSO
 *Optimise anything (but mainly large-scale biophysical models) using Gaussian Processes surrogate*