Update community.md

Author: Martha Cryan

community.md

@@ -189,7 +189,7 @@ Individual workshops:
 - [Building the Jupyter Community in Musculoskeletal Imaging Research](https://blog.jupyter.org/report-on-the-jupyter-community-workshop-77016ab1d49b): (Serena Bonaretti)
 - [An accessibility audit and roadmap for the Jupyter ecosystem](https://blog.jupyter.org/jupyter-accessibility-workshops-wrap-up-8649dfe5f89): (Tania Allard, Isabela Presedo-Floyd)
 
-### Round 4: 2022-2023
+#### Round 4: 2022-2023
 - [Round 4: Call for Proposals](https://blog.jupyter.org/jupyter-community-workshops-c7491a3cca00)
 
 Individual workshops: