Docs - Support docsearch in website (#184)

Support docsearch in website, powered by [Algolia](https://docsearch.algolia.com).

website/docusaurus.config.js

@@ -104,6 +104,11 @@ module.exports = {
         '📢 <a href="https://microsoft.github.io/superbenchmark/blog/release-sb-v0.2">v0.2.1</a> has been released! ' +
         '⭐️ If you like SuperBench, give it a star on <a target="_blank" rel="noopener noreferrer" href="https://github.com/microsoft/superbenchmark">GitHub</a>! ⭐️',
     },
+    algolia: {
+      apiKey: '6809111d3dabf59fe562601d591d7c53',
+      indexName: 'superbenchmark',
+      contextualSearch: true,
+    },
     prism: {
       theme: lightCodeTheme,
       darkTheme: darkCodeTheme,

website/package.json

@@ -16,6 +16,7 @@
   "dependencies": {
     "@docusaurus/core": "2.0.0-beta.1",
     "@docusaurus/preset-classic": "2.0.0-beta.1",
+    "@docusaurus/theme-search-algolia": "^2.0.0-beta.4",
     "@mdx-js/react": "^1.6.21",
     "@svgr/webpack": "^5.5.0",
     "clsx": "^1.1.1",