Add e-commerce to full feature list

Author: hach-que

src/pages/index.tsx

@@ -582,6 +582,12 @@ Identity->Login(
                           </ul>
                         </li>
                         <li>Play-in-editor support</li>
+                        <li>
+                          <Link href="/docs/ossv1/ecom/offers">
+                            E-commerce support on Steam, Google Play and Epic
+                            Games Store
+                          </Link>
+                        </li>
                         <li>Unified friends list across platforms</li>
                         <li>iOS, Android, Meta Quest &amp; console support</li>
                         <li>Join games from Steam, Discord, etc.</li>