Add level to stairs

assets/layers/stairs/stairs.json

@@ -28,6 +28,19 @@
   },
   "tagRenderings": [
     "images",
+    {
+      "builtin": "multilevels",
+      "override": {
+        "question": {
+          "en": "Between which levels are these stairs?",
+          "nl": "Tussen welke verdiepingen loopt deze trap?"
+        },
+        "render": {
+          "en": "These stairs are between the levels {level}",
+          "nl": "Deze trap loopt tussen de verdiepingen {level}"
+        }
+      }
+    },
     {
       "id": "handrail",
       "question": {
@@ -51,7 +64,6 @@
         }
       ]
     },
-
     {
       "id": "tactile_writing",
       "condition": "handrail=yes",