Update miniature

Author: SylvainCorlay

_config.yml

@@ -8,7 +8,7 @@ blog:
   - url: https://quantstack.net/fanny.html
     title: "In memoriam: Fanny Loustau Chartez"
     image: https://quantstack.net/img/avatar/Fanny@2x.jpg
-    summary: "It is with great sadness that we announce the passing of our colleague and friend, Fanny Loustau Chartez, who served as the Administrative and Financial Director of QuantStack since 2021."
+    summary: "It is with great sadness that we announce the passing of our colleague and friend, Fanny Loustau Chartez, who served as the Chief Financial Officer of QuantStack since 2021."
     date: May 16, 2024
     authors: Sylvain Corlay