Update article-404.hbs

Author: gtrivedi88

antora-lunr-ui/partials/article-404.hbs

@@ -2,7 +2,7 @@
     <h1 class="page">{{{or page.title 'Page Not Found'}}}</h1>
     <div class="paragraph">
         <p>The page you&#8217;re looking for does not exist. It may have been moved. You can{{#with site.homeUrl}}
-            return to the <a href="{{uiRootPath}}">start page</a>, or{{/with}} follow one of the links in the navigation to
+            return to the <a href="https://redhat-appstudio.github.io/docs.appstudio.io/">start page</a>, or{{/with}} follow one of the links in the navigation to
             the left.</p>
     </div>
     <div class="paragraph">