add list json file

Signed-off-by: lish <lish@csdn.net>

list.json

+{
+    "default_index": [
+        {
+            "id": "1",
+            "title": "《移动开发十年》",
+            "path": "codechina/programmer/10-years-of-mobile-dev",
+            "detail": "/api/v4/projects/codechina%2Fprogrammer%2F10-years-of-mobile-dev/repository/files/detail.json/raw?ref=master",
+            "chapters": "/api/v4/projects/codechina%2Fprogrammer%2F10-years-of-mobile-dev/repository/files/chapters.json/raw?ref=master",
+            "list_image": "https://images.gitbook.cn/Fg_-eDnBvuAVxBrBv2vjzMpQ3e3E",
+            "original_price": "19.9",
+            "line_price": "19.9",
+            "sale_price": "9.9",
+            "short_description": "我们特别组织了数十位开发者，一方面，是十年改变与回顾...",
+            "author": {
+                "username": "programer",
+                "user_title": "国内开发者的权威刊物",
+                "nickname": "程序员杂志编辑组"
+            }
+        }
+    ]
+}