docs: add a options template to localize algolia tool instructions (#2758)

* docs: add a options template to localize algolia tool instructions

closes #2744

* refactor: feedback

---------

Co-authored-by: Eduardo San Martin Morote <[email protected]>

Author: nazarepiedady

.github/CONTRIBUTING.md

@@ -86,3 +86,7 @@ pnpm run docs:translation:compare <lang> upstream/v2
 ```
 
 <!-- TODO: add an example once we have got one -->
+
+### Translating Search text
+
+The search box is powered by Algolia and you will need to translate the properties. Inspire yourself from `.vitepress/config/zh.ts` `zhSearch` variable.