feat(website): add DocSearch as recommended by docusaurus.

[s-pace]

👋 team,

I am working on DocSearch. We have an integration for Docusaurus. We thought it is a shame you can not also used this search that you can find on reactjs for example.

Where is the website source code? I wan to do a PR which will add DocSearch to the documentation website. It will allow an user to have a learn-as-you-type experience by displaying results thanks to a dropdown in a live way.

Let me know if you need anything.

[zamotany]

Hey @s-pace, thank for reaching out but I'm not longer using Docusaurus for the website. I've switched to Docsify.

[s-pace]

Alright. Do you want me to update it to Docsify then?

[zamotany]

Sure would be awesome! 👍
Let me know if you need anything from me

[s-pace]

Congratulations, your search is now ready!
I've successfully configured the underlying crawler and it will now run every 24h.

You're now a few steps away from having it working on your website:

• Copy the following CSS/JS snippets and add them to your page

<!-- at the end of the HEAD -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.css" />

<!-- at the end of the BODY -->
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.js"></script>
<script type="text/javascript"> docsearch({
  apiKey: 'f21790e191b394baced90e46598a70a7',
  indexName: 'react-slate',
  inputSelector: '### REPLACE ME ####',
  debug: false // Set debug to true if you want to inspect the dropdown
});
</script>

• Add a search input in your page if you don't have any yet. Then update the inputSelector value in JS snippet
  to a CSS selector that targets your search input field.
• Optionally customize the look and feel by following the DocSearch documentation.
• You can also check your configuration in our GitHub repository

Please open a pull request if want to leverage your configuration!

Feel free to get back to us if you have any issues or questions regarding the integration.

We'd also be happy to get your feedback and thoughts about DocSearch - so we can continue to improve it.

Have a nice day :)