Customize home page title

Author: echeran

src/content/docs/index.mdx

@@ -1,5 +1,8 @@
 ---
 title: ICU4X
+head:
+  - tag: title  # we want to override <title> tag
+    content: "ICU4X: Solving i18n for client-side and resource-constrained environments" # custom value for <title> tag
 description: ICU4X provides internationalization (i18n) functionality in resource constrained environments,
     across programming languages, and in a performant way.
 template: splash