Add reference design images, point task.json at relative paths

tasks/c37/task.json

@@ -16,7 +16,7 @@
  ],
  "domain": "数据展示",
  "seed_meta": {
-  "ref_image_src": null
+  "ref_image_src": "prototypes/reference.jpg"
  },
  "title": "Monday Happy Monday 客户数据面板改造",
  "milestones": [