Updated webpage (stepan).

_data/dynare_team.yml

 - name: Stéphane Adjemian
   affiliation: Université du Maine
   img: /assets/images/team/stepan.png
-  webpage: https://stepan.adjemian.eu/
+  webpage: https://stephane-adjemian.fr/
 
 - name: Houtan Bastani
   affiliation: ''