Add new hackathons.

Author: sdhutchins

_data/upcoming_hackathons.yml

@@ -2,27 +2,13 @@
   loc: "ADVERTISE YOUR HACKATHON ON THIS PAGE!"
   link: https://goo.gl/forms/BijIwPgPo7nhtdG03
   community:
-
-- date: "January 13-17, 2025"
-  loc: "openTECR hackathon 2025"
-  link: https://docs.google.com/document/d/1B85tFUaQyThzoWO1WB87ouGFkNcfAnBLdJ5f0_JtqQo/
 
-- date: "March 3-5, 2025"
-  loc: "Machine Learning and AI Approaches to Multimodal Problems in Computational Biology"
-  link: https://guides.library.cmu.edu/hackathon/start
-  community:  
-
-- date: "April 1-2, 2025"
-  loc: "FAIR Data Hackathon at BioIT world"
-  link: https://www.bio-itworldexpo.com/fair-data-hackathon
-  community:  
-
-- date: "May 12-15, 2025"
-  loc: "BioAI Hackathon at the University of Warsaw"
-  link: TBD
-  community:  
+- date: "September 8-12, 2025"
+  loc: "NCBI Comparative Genomics Codeathon: Advancing human health through collaborative discovery"
+  link: https://ncbiinsights.ncbi.nlm.nih.gov/event/2025cgcodeathon/
+  community:
 
-- date: "July 23-24, 2025"
-  loc: "BOSC CollaborationFest with CAFA and others"
-  link: TBD
-  community:  
+- date: "October 21-22, 2025"
+  loc: "Open Targets Hackathon"
+  link: https://www.opentargets.org/hackathon
+  community: