diff --git a/README.md b/README.md
index 4dae9783..9371e9c0 100644
--- a/README.md
+++ b/README.md
@@ -2,24 +2,24 @@
 
 a subscription for gkd
 
-## gitmirror
+## githubusercontent
 
 <details>
   <summary> gkd </summary>
 
 - [gdk](https://raw.githubusercontent.com/gkd-kit/subscription/main/dist/gkd.json)
 
-![image](https://github.com/lisonge/gkd/assets/38517192/cd25d007-f3ef-49bc-a930-6f0a7d0aded5)
+![image](https://github.com/gkd-kit/subscription/assets/38517192/2c108e12-04c5-4183-8347-eea6fc3ae433)
 
 </details>
 
-## 大陆 CDN
+## npmmirror
 
 <details>
   <summary> gkd </summary>
 
 - [gkd](https://registry.npmmirror.com/@gkd-kit/subscription/latest/files)
 
-![image](https://github.com/lisonge/gkd/assets/38517192/a0f95072-881e-4157-9c6b-2fcab03a84c2)
+![image](https://github.com/gkd-kit/subscription/assets/38517192/aedeef12-a590-43fd-8568-afe367181d57)
 
 </details>
diff --git a/src/file.ts b/src/file.ts
index 1159c3d5..856c4ff2 100644
--- a/src/file.ts
+++ b/src/file.ts
@@ -29,7 +29,7 @@ export const writeConfig = async (fp: string, config: SubscriptionConfig) => {
   }
   newConfig.version++;
 
-  // check duplicated key
+  // check duplicated group key
   newConfig.apps?.forEach((app) => {
     const keys = new Set<number>();
     app.groups?.forEach((g) => {
@@ -46,6 +46,7 @@ export const writeConfig = async (fp: string, config: SubscriptionConfig) => {
     });
   });
 
+  // check slector syntax
   newConfig.apps?.forEach((app) => {
     app.groups?.forEach((g) => {
       if (!g.rules) return;
@@ -64,7 +65,7 @@ export const writeConfig = async (fp: string, config: SubscriptionConfig) => {
               parseSelector(selector);
             } catch (e) {
               console.error({
-                message: `invalid selector`,
+                message: `invalid selector syntax`,
                 appId: app.id,
                 groupKey: g.key,
                 selector,