Fix period typo in site index

Author: weavejester

site/index.html

@@ -53,7 +53,7 @@ <h1 class="title">
     <section class="section">
       <div class="container is-max-tablet">
         <p class="is-size-4">
-          Factor out common configuration with <strong>modules</strong>.
+          Factor out common configuration with <strong>modules</strong>
         </p>
         <p>
           Modules expand out into extra configuration that you can inspect and