Update config.json

data/2.网络中阶/1.交换/3.STP/config.json

 {
   "node_id": "network-47c1720cca854491a63065893b444aa0",
-  "keywords": ["生成树","STP"],
+  "keywords": [
+    "生成树",
+    "STP"
+  ],
   "children": [],
-  "export": [],
+  "export": [
+    "01.json",
+    "02.json",
+    "03.json"
+  ],
   "keywords_must": [],
   "keywords_forbid": []
-}
+}
\ No newline at end of file