fix: Get Started button now links to /overview/introduction

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: gHashTag

docsite/src/pages/index.tsx

@@ -19,7 +19,7 @@ function HomepageHeader() {
         <div className={styles.buttons}>
           <Link
             className="button button--secondary button--lg"
-            to="/">
+            to="/overview/introduction">
             Get Started →
           </Link>
         </div>