link to vue conf talk

Author: Boshen

src/docs/guide/media.md

@@ -50,3 +50,17 @@ outline: deep
     allowfullscreen
   ></iframe>
 </div>
+
+<br />
+<br />
+
+<div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; height: auto;">
+  <iframe
+    src="https://www.youtube.com/embed/ofQV3xiBgT8"
+    style="position: absolute; top:0; left: 0; width: 100%; height: 100%;"
+    frameborder="0"
+    allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share"
+    referrerpolicy="strict-origin-when-cross-origin"
+    allowfullscreen
+  ></iframe>
+</div>