Clarify algolia search key is designed to be public (#3085)

packages/website/docusaurus.config.ts

@@ -275,6 +275,7 @@ const config: Config = {
     algolia: {
       // cspell:disable-next-line
       appId: "V3T9EUVLJR",
+      // This is the search API KEY this can be public https://support.algolia.com/hc/en-us/articles/18966776061329-Can-the-search-API-key-be-public
       apiKey: "bae16ae67ddbe24e700ac20d192ad20f",
       indexName: "typespec",
     },