Update fr-FR.json

Confusion between action in order to read the article and action for marking it as read

Author: geogiraux

src/scripts/i18n/fr-FR.json

@@ -70,7 +70,7 @@
     },
     "context": {
         "share": "Partager",
-        "read": "Lu",
+        "read": "Lire",
         "copyTitle": "Copier le titre",
         "copyURL": "Copier le lien",
         "copy": "Copier",