Update docs/index.rst

Co-authored-by: Erik van Sebille <e.vansebille@uu.nl>

Author: michaeldenes

docs/index.rst

@@ -38,7 +38,7 @@ For the wind and wave data, we recommend using the `CDS API <https://cds.climate
 
 To run the examples, you will need to update the data directories in settings ``.json`` files.
 
-Just like the ``parcels`` framework, ``plasticparcels`` can be adapted to use other hydrodynamic, biogeochemical, wave, and atmospheric models. If you require assistance, please contact us through the Discussions page on github https://github.com/OceanParcels/plasticparcels/discussions
+Just like the ``parcels`` framework, ``plasticparcels`` can be adapted to use other hydrodynamic, biogeochemical, wave, and atmospheric models. If you require assistance, please contact us through the [Discussions page on GitHub](https://github.com/OceanParcels/plasticparcels/discussions).
 
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