Add FAQ link in header template

config.example.yaml

@@ -14,6 +14,8 @@ header:
       url: https://scdl.opendatafrance.net/docs
     - title: Forum
       url: https://teamopendata.org/c/socle-commun-des-donnees-locales
+    - title: FAQ
+      url: https://git.opendatafrance.net/validata/validata-ui/-/tree/master/docs#questions-fr%C3%A9quemment-pos%C3%A9es-faq
 homepage:
   sections:
     - name: scdl