docs: Wrong "comma" position in the Algolia configuration sample code (#3016)

Author: Lete114

Diff for: packages/docs/docs/theme/default-theme-config.md

@@ -407,9 +407,9 @@ module.exports = {
   themeConfig: {
     algolia: {
       apiKey: '<API_KEY>',
-      indexName: '<INDEX_NAME>'
+      indexName: '<INDEX_NAME>',
       // If Algolia did not provided you any `appId`, use `BH4D9OD16A` or remove this option
-      appId: '<APP_ID>',
+      appId: '<APP_ID>'
     }
   }
 }

Diff for: packages/docs/docs/zh/theme/default-theme-config.md

@@ -399,9 +399,9 @@ module.exports = {
   themeConfig: {
     algolia: {
       apiKey: '<API_KEY>',
-      indexName: '<INDEX_NAME>'
+      indexName: '<INDEX_NAME>',
       // 如果 Algolia 没有为你提供 `appId` ，使用 `BH4D9OD16A` 或者移除该配置项
-      appId: '<APP_ID>',
+      appId: '<APP_ID>'
     }
   }
 }