rm old workshops and move latest to recent

Author: samumantha

content/index/news.md

@@ -3,8 +3,6 @@
 
 ## Upcoming workshops and other news
 
-- The next CodeRefinery workshop is happening Mar 25-27/Apr 1-3 2025. More info and registration on the [workshop website](https://coderefinery.github.io/2025-03-25-workshop/)!
-    - We would appreciate you helping us advertise this workshop. You may reuse any of our [workshop announcement texts](https://coderefinery.github.io/2025-03-25-workshop/communication/) or print and distribute our [workshop poster for your timezone](https://github.com/coderefinery/posters/tree/main/2025_spring_workshop). 
 - We have a short [slideset about CodeRefinery](@/about/presentations.md) which you can reuse in own presentations.
 - Recently we recorded a [Shell crash course](https://youtu.be/xbTTDLA3txI)
   which can be used as preparation for those who wish to follow the course
@@ -15,15 +13,6 @@
 
 ## Recent workshops
 
+- [CodeRefinery tools workshop](https://coderefinery.github.io/2025-03-25-workshop/) (Mar 25-27/Apr 1-3 2025)
 - [Python for Scientific Computing (online)](https://www.aalto.fi/en/events/python-for-scientific-computing-5-7november2024) (Nov 5-7, 2024).
 - [Build Systems Course and Hackathon (online)](https://github.com/PDC-support/build-systems-course) (Oct 8-11, 2024).
-- [CodeRefinery tools workshop (online)](https://coderefinery.github.io/2024-09-10-workshop/) (Sep 10-12 & 17-19, 2024).
-- During August and September we held our [CodeRefinery train the trainer workshop](https://coderefinery.github.io/train-the-trainer/). Materials are available and we summarized the event in a [blogpost](https://coderefinery.org/blog/train-the-trainer/).
-- [CodeRefinery tools workshop (Gothenburg)](https://coderefinery.github.io/2024-08-27-gothenburg/) (Aug 27-29, 2024).
-- [Mini-workshop](https://coderefinery.github.io/mini-workshop/) at the [European Light Field Imaging Workshop](https://elfi2024.eu/) (Jun 25-27, 2024).
-- [Aalto University Scientific Computing/HPC Kickstart](https://scicomp.aalto.fi/training/scip/kickstart-2024/)
-  (Jun 4-6, 2024).
-  Materials and recordings available.
-- [Tuesday Tools & Techniques for High Performance Computing, April-May 2024](https://scicomp.aalto.fi/training/scip/ttt4hpc-2024/)
-  (Apr-May 2024).
-  Materials and recordings available.