Add date for Raphael's talk

README.md

@@ -41,7 +41,7 @@ If you see other opportunities then we would love to hear your ideas!
 ### Presentations
 
 - 2024/11/21 - MET Office Architecture Guild - Tom Nicholas - [Slides](https://speakerdeck.com/tomnicholas/virtualizarr-talk-at-met-office)
-- 2024/?/? - Cloud-Native Geospatial conference - Raphael Hagen - [Slides](https://decks.carbonplan.org/cloud-native-geo/11-13-24)
+- 2024/11/13 - Cloud-Native Geospatial conference - Raphael Hagen - [Slides](https://decks.carbonplan.org/cloud-native-geo/11-13-24)
 - 2024/07/24 - ESIP Meeting - Sean Harkins - [Event](https://2024julyesipmeeting.sched.com/event/1eVP6) / [Recording](https://youtu.be/T6QAwJIwI3Q?t=3689)
 - 2024/05/15 - Pangeo showcase - Tom Nicholas - [Event](https://discourse.pangeo.io/t/pangeo-showcase-virtualizarr-create-virtual-zarr-stores-using-xarray-syntax/4127/2) / [Recording](https://youtu.be/ioxgzhDaYiE) / [Slides](https://speakerdeck.com/tomnicholas/virtualizarr-create-virtual-zarr-stores-using-xarray-syntax)