Add sponsor list for conference (#183)

conference/2024.md

@@ -93,11 +93,20 @@ the proceedings in the form of an article of 6-10 pages.
 
 For full information please see [here](pages_2024/proceedings.md).
 
+# Sponsors
+
+The poster session is sponsored by
+
+[![Flax & Teal](https://flaxandteal.co.uk/images/logo.png){:.image-center}](https://flaxandteal.co.uk/)
+
+The travel grants are sponsored by
+
+[![NumFOCUS](/assets/img/numfocus.png){: .image-center }](https://www.numfocus.org/)
+
 # Conference Organizers
 
 - Jørgen S. Dokken, Simula Research Laboratory
 - Henrik N. Finsberg, Simula Research Laboratory
 - Marie E. Rognes, Simula Research Laboratory
 
 [![Simula](/assets/img/fenics2024/simula.png){: .image-center }](https://www.simula.no/)
-[![NumFOCUS](/assets/img/numfocus.png){: .image-center }](https://www.numfocus.org/)