chore: fix dead Algolia DocSearch links (#3097)

packages/docs/docs/theme/default-theme-config.md

@@ -399,7 +399,7 @@ If you need full text search, you can use [Algolia Search](#algolia-search).
 
 ### Algolia Search
 
-The `themeConfig.algolia` option allows you to use [Algolia DocSearch](https://community.algolia.com/docsearch/) to replace the simple built-in search. To enable it, you need to provide at least `apiKey` and `indexName`:
+The `themeConfig.algolia` option allows you to use [Algolia DocSearch](https://docsearch.algolia.com/) to replace the simple built-in search. To enable it, you need to provide at least `apiKey` and `indexName`:
 
 ``` js
 // .vuepress/config.js
@@ -416,7 +416,7 @@ module.exports = {
 ```
 
 ::: warning Note
-Unlike the [built-in search](#built-in-search) engine which works out of the box, [Algolia DocSearch](https://community.algolia.com/docsearch/) requires you to submit your site to them for indexing before it starts working.
+Unlike the [built-in search](#built-in-search) engine which works out of the box, [Algolia DocSearch](https://docsearch.algolia.com/) requires you to submit your site to them for indexing before it starts working.
 :::
 
 For more options, check out [Algolia DocSearch’s documentation](https://github.com/algolia/docsearch#docsearch-options).