add pangeo showcase talk

Author: brian-rose

portal/about.md

@@ -63,6 +63,7 @@ To learn more about Project Pythia and its history, see this list of presentatio
 
 | Forum | Date | Presenter | Format | Title (with link) |
 | ---   |  ---  |   ---   |  ---    |  --- |
+| Pangeo Showcase | 2024-10 | Brian Rose | slides | [Project Pythia Cookbooks: Challenges and progress in breaking down barriers to Open Science](https://docs.google.com/presentation/d/1-RS9DviJnOzwlRMNv1786UMYJ8PmQU-ohu0vo51NM0Q/edit?usp=sharing) |
 | Ocean Sciences | 2024-02 | Brian Rose | slides | [The Project Pythia Cookbook Initiative](https://docs.google.com/presentation/d/1tvABElX-0CgiuzMfY7XFY-gsXzGUXqWV6k2qJeTw5bk/edit?usp=sharing) |
 | AMS   | 2024-01 | Drew Camron | slides | [Project Pythia: Three Years of Community Building Through Open Source Technology and Education](https://drive.google.com/file/d/1nZfWWozBKQzVCYpKUqWPX51MEgSAhgfM/view?usp=sharing) |
 | AMS   | 2024-01 | Kevin Tyle | slides | [Cooking up a Storm with Project Pythia](https://docs.google.com/presentation/d/1zMsoCg1RMHGZDuLLV0QsZB6NwKE7CKo5_8iFAGDGj6o/edit?usp=drive_link) |