Created 外教课程分类数据 (markdown)

+###接口地址
+````
+/foreign/catalog
+````
+###请求方式
+````
+GET请求
+````
+###URL参数
+access_token
+
+###返回值
+有返回值
+```json
+   [
+    {
+        "id": 106,
+        "name": "Lower level"
+    },
+    {
+        "id": 111,
+        "name": "High level"
+    },
+    {
+        "id": 112,
+        "name": "Training"
+    }
+]
+```