docs: update README.md

plugins/config.json.template

@@ -20,5 +20,19 @@
             "no_default": false,
             "model_name": "gpt-3.5-turbo"
         }
+    },
+    "linkai": {
+        "group_app_map": {
+            "测试群1": "default",
+            "测试群2": "Kv2fXJcH"
+        },
+        "midjourney": {
+            "enabled": true,
+            "auto_translate": true,
+            "img_proxy": true,
+            "max_tasks": 3,
+            "max_tasks_per_user": 1,
+            "use_image_create_prefix": true
+        }
     }
 }