Update index.md (#1004)

Author: christopher-hakkaart

docs/index.md

@@ -18,7 +18,7 @@ To get started with Wave:
 Wave is also available as a hosted service on [Seqera Platform](https://cloud.seqera.io/). For Seqera Enterprise customers, a licensed self-hosted Wave solution is also available. [Contact us](https://seqera.io/contact-us/) for more information.
 :::
 
-[wave-tutorials]: ./tutorials/index.md
+[wave-tutorials]: ./tutorials/index.mdx
 [nf]: ./nextflow/index.md
 [cli]: ./cli/index.md