missing whitespace for external ref

Author: florianBachinger

_posts/2023-03-13-ism2023-track-organization.md

@@ -31,4 +31,5 @@ The increasing application of machine learning (ML) models in modern industrial
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 ![ISM2023](/blog/resources/2023-03-13-ism2023-track-organization/ism2023-flyer.jpg)
-[ism]: https://www.msc-les.org/ism2023/
+
+[ism]: https://www.msc-les.org/ism2023/