Add video to /start "Is it any good?" (#20192)

Added a video to /start "Is it any good?" as per Figma wires:
https://www.figma.com/design/3he8e72251IEnF6dBafKq1/%F0%9F%9A%A7-fleetdm.com-(scratchpad)?node-id=14741-317164

website/views/pages/start.ejs

@@ -390,21 +390,21 @@
         </div>
         <h2>Is it any good?</h2>
         <div purpose="form-header" class="mx-auto">
-          <p class="mb-3 pb-3">We don’t have a public sample environment, but you can try Fleet out locally on your computer.</p>
-          <p>Got questions? <a purpose="contact-link" href="/contact">Ask us anything</a>.</p>
+          <p class="">We don’t have a public sample environment, but you can try Fleet out locally on your computer.</p>
         </div>
         <div purpose="start-cards">
           <a purpose="card" href="/try-fleet?start">
             <img alt="Run a local demo of Fleet" src="/images/[email protected]">
             <h2>Try Fleet yourself</h2>
             <p>Try Fleet locally on your device</p>
           </a>
-          <a purpose="card" href="/docs/get-started">
-            <img alt="Purchase a Fleet Premium license" src="/images/homepage-icon-documentation[email protected]">
-            <h2>Read the docs</h2>
+          <a purpose="card" href="https://youtu.be/QpdRADHWP_o?feature=shared&t=1333" target="_blank">
+            <img alt="Watch a demo" src="/images/play-button[email protected]">
+            <h2>Watch a demo</h2>
             <p>See what Fleet can do</p>
           </a>
         </div>
+        <p>Got questions? <a purpose="contact-link" href="/contact">Ask us anything</a>.</p>
         <p>You can come back here any time to continue with your deployment.</p>
         <div purpose="form-buttons">
           <a purpose="back-button" @click="clickGoToPreviousStep()">Back</a>