Update README.md

Author: C-Achard

README.md

@@ -4,7 +4,7 @@
 <img src="docs/res/logo/logo_diag.png" title="cellseg3d" alt="cellseg3d logo" width="250" align="right" vspace = "80"/>
 
 <a href="https://github.com/psf/black"><img alt="Code style: black" src="https://img.shields.io/badge/code%20style-black-000000.svg"></a>
-[![License MIT](https://img.shields.io/pypi/l/napari-cellseg3d.svg?color=green)](https://github.com/AdaptiveMotorControlLab/CellSeg3d/raw/main/LICENSE)
+[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://www.gnu.org/licenses/mit(https://github.com/AdaptiveMotorControlLab/CellSeg3d/raw/main/LICENSE)
 [![PyPI](https://img.shields.io/pypi/v/napari-cellseg3d.svg?color=green)](https://pypi.org/project/napari-cellseg3d)
 [![Python Version](https://img.shields.io/pypi/pyversions/CellSeg3d.svg?color=green)](https://python.org)
 [![tests](https://github.com/AdaptiveMotorControlLab/CellSeg3d/workflows/tests/badge.svg)](https://github.com/AdaptiveMotorControlLab/CellSeg3d/actions)
@@ -125,4 +125,4 @@ https://github.com/napari/cookiecutter-napari-plugin#getting-started
 
 and review the napari docs for plugin developers:
 https://napari.org/plugins/stable/index.html
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