fix(docs): Fix typo on landing page

docs/layouts/index.en.html

@@ -133,7 +133,7 @@
                 <div class="feature-copy">
                     <h3>Works with your favourite tech</h3>
                     <p class="lead">
-                        With Vendure you <strong>free to choose</strong> the front-end technology you know best.
+                        With Vendure you are <strong>free to choose</strong> the front-end technology you know best.
                     </p>
                     <p class="lead">
                         You and your team have expertise. Use it to <strong>rapidly</strong> build the storefront your clients have dreamed of.