test of sortable table

test.md

@@ -0,0 +1,13 @@
+```json:table
+{
+    "fields" : [
+        {"key": "a", "label": "AA", "sortable": true},
+        {"key": "b", "label": "BB"},
+        {"key": "c", "label": "CC"}
+    ],
+    "items" : [
+      {"a": "11", "b": "22", "c": "33"},
+      {"a": "211", "b": "222", "c": "233"}
+    ]
+}
+```