:recycle: Define default share img

src/meta.yml

@@ -1,6 +1,9 @@
 ---
 author: Jovian HERSEMEULE
-share-img: /include/images/avatar-cartoon600.png
+img:
+        share:
+                path: "/include/images/avatar-cartoon600.png"
+                alt: Jovian avatar cartoon
 description: Le site officiel de Jovian HERSEMEULE
 
 # Technical