Fix formatting

Author: cmutel

index.html

@@ -36,7 +36,7 @@
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-        <h4 style="text-align: center">DdS <a href="https://www.d-d-s.ch/spring-24.html">2024 Spring School on Advanced open source inventory modelling</a> applications open!</h4>
+        <h4 style="text-align: center"><a href="https://www.d-d-s.ch/spring-24.html">2024 Spring School on Advanced open source inventory modelling</a></h4>
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