Fix broken links

Author: Rigidity

docusaurus.config.ts

@@ -64,7 +64,7 @@ const config: Config = {
           items: [
             {
               label: "Sage",
-              href: "/docs/sage",
+              href: "/docs",
             },
             {
               label: "Wallet SDK",

src/pages/index.tsx

@@ -18,7 +18,7 @@ function HomepageHeader() {
         </Heading>
         <p className="hero__subtitle">{siteConfig.tagline}</p>
         <div className={styles.buttons}>
-          <Link className="button button--secondary button--lg" to="/docs/sage">
+          <Link className="button button--secondary button--lg" to="/docs">
             Get Started
           </Link>
         </div>