Add links to the recordings for HIW/HEW 2025 (#540)

Author: aherrmann

events/2025-haskell-ecosystem-workshop.markdown

@@ -31,7 +31,7 @@ The registration link is available [on Eventbrite](https://www.eventbrite.com/e/
 
 ## Video Recordings
 
-Video recording will be managed by the team at the Zurich Friends of Haskell!
+The recordings [are available on YouTube](https://www.youtube.com/playlist?list=PLQpeDZt0_xQe319u9EdkpxjibYFtGsugc).
 
 ## The Workshop
 

events/2025-haskell-implementors-workshop.markdown

@@ -214,7 +214,7 @@ Coffee, tea, and fruit will be provided. There is also easy access to a tap for
 
 ### Video Recordings and Live Streaming
 
-We will record all presentations and make them available online.
+The recordings [are available on YouTube](https://www.youtube.com/playlist?list=PLQpeDZt0_xQfpBPdVV3hUZ3_pDxmYhsbr).
 
 ## The Workshop