Start adding translations for catalogue raisonne

backend/es/basis.json

@@ -109,6 +109,7 @@
         "article": "Article",
         "articles_choose": "Select an article",
         "articles_input": "Add an article",
-        "annotations": "Annotations"
+        "annotations": "Annotations",
+        "catalogue_raisonne": "Catalogue raisonne"
     }
 }