announce hackathon

Author: johanneskoester

src/config.yaml

@@ -39,6 +39,7 @@ hero:
     - "[>1,000,000 downloads](https://anaconda.org/bioconda/snakemake)"
     - "[Open source](https://github.com/snakemake), [MIT licensed](https://github.com/snakemake/snakemake/blob/main/LICENSE.md)"
     - '[<img src="numfocus.svg" alt="NumFOCUS" style="height: 1em; vertical-align: middle; display: inline; margin: unset"> affiliated project](https://numfocus.org/affiliated-projects)'
+    - 'Join the [Snakemake hackathon 2025](https://indico.cern.ch/event/snakemake2025) at <span style="color: #255eb1">CERN<span>!'
   links:
     - url: https://doi.org/10.12688/f1000research.29032.2
       text: Read the paper