improve testimonial cards, fix some minor issues

src/pages/404.astro

@@ -11,7 +11,7 @@ const { Content } = await entry.render();
     <div class="container">
       <div class="row justify-center">
         <div class="text-center sm:col-10 md:col-8 lg:col-6">
-          <img class="mb-8 w-full" src="images/404.png" alt="page not found" />
+          <img class="mb-8 w-full" src="/images/404.png" alt="page not found" />
           <h1 class="h2 mb-4" set:html={markdownify(entry.data.title)} />
           <Content />
           <a href="/" class="btn btn-primary mt-8">Back To Home</a>

src/pages/index.astro

@@ -88,7 +88,7 @@ const { banner, features } = homepage.data;
                   {feature.bulletpoints.map((bullet: string) => (
                     <li class="relative mb-4 pl-6">
                       <FaCheck className={"absolute left-0 top-1.5"} />
-                      {markdownify(bullet)}
+                      <span set:html={markdownify(bullet)} />
                     </li>
                   ))}
                 </ul>