Revert "Basic usage -> quick start"

This reverts commit f4b6a74.

site/src/pages/[...framework]/index.mdx

@@ -25,21 +25,21 @@ export const components = {a: Link, pre: Pre}
 
 {/* We need an empty match for a complicated reason related to async and collecting the TOC headers in order */}
 <Match>
-<Heading class="sr-only" value="Quick start" />
+<Heading class="sr-only" value="Basic usage" />
 </Match>
 
 <div className='xl:pre-first-line:hidden first:*:mt-0'>
 <Match react>
 ```jsx
-// Quick start
+// Basic usage
 import NumberFlow from '@number-flow/react'
 
 <NumberFlow value={123} />
 ```
 </Match>
 <Match vue>
 ```vue
-<!-- Quick start -->
+<!-- Basic usage -->
 <script setup>
 import NumberFlow from '@number-flow/vue'
 </script>
@@ -50,7 +50,7 @@ import NumberFlow from '@number-flow/vue'
 </Match>
 <Match svelte>
 ```svelte
-<!-- Quick start -->
+<!-- Basic usage -->
 <script>
 import NumberFlow from '@number-flow/svelte'
 </script>