Change home page intro to scene setter style

layouts/homepage.njk

@@ -21,14 +21,14 @@
           <h1 class="tna-heading-xl">
             Design your service using National Archives styles and components
           </h1>
-          <p class="tna-large-paragraph">Use this design system to make services that are consistent with The National Archives. Learn from the research and experience of other service teams and avoid repeating work that has already been done.</p>
+          <p class="tna-scene-setter">Use this design system to make services that are consistent with The National Archives. Learn from the research and experience of other service teams and avoid repeating work that has already been done.</p>
           <div class="tna-button-group">
             {{ tnaButton({
               text: "Get started",
               href: "/design-system/get-started/",
               icon: "arrow-right",
               rightAlignIcon: true,
-              classes: "tna-button--large"
+              classes: "tna-button--large-"
             }) }}
           </div>
         </div>