Update picture alt text

Author: SylvainCorlay

src/pages/blogs/Fanny.tsx

@@ -17,7 +17,7 @@ export default function FannyComponent() {
               <div className="col col--10 col--offset-1">
                 <div className="flex-full-centered">
                   <div className={styles.avatar}>
-                    <img src={FannyAvatarUrl} alt={"Picture of Fanny."} />
+                    <img src={FannyAvatarUrl} alt={"Fanny Loustau-Chartez."} />
                   </div>
                 </div>
                 <div className="spacing-2xl"></div>