Merge pull request #132 from shuds13/main

Add OpenCosmo slides

Author: rafaelfsilva

_talks/2026_02_18.html

@@ -5,9 +5,9 @@
 event_date: February 18, 2026
 times: 11:00am PST / 2:00pm EST / 20:00 CEST
 talk_number: 11
-given: false
+given: true
 image: /images/talks/wells-banner.jpg
-<!-- presentation: /files/talks/20260218-Wells-OpenCosmo.pdf -->
+presentation: /files/talks/20260218-Wells-OpenCosmo.pdf
 video: https://www.youtube.com/embed/6u3UvCfK54k?si=nb7IOrkKRwcfvsyb
 ---