Update cta

Author: ThomasVitale

src/pages/index.tsx

@@ -17,7 +17,7 @@ function HomepageHeader() {
         <div className={styles.buttons}>
           <Link
             className="button button--secondary button--lg"
-            to="https://github.com/kadras-io/engineering-platform">
+            to="/docs/category/getting-started">
             Get Started 🚀
           </Link>
         </div>