Fixed YouTube links

Author: stephenchouca

index.html

@@ -162,11 +162,10 @@ <h1 class="mdl-typography--headline text-center titles-grey home-header">Media</
             <div class="mdl-cell mdl-cell--4-col demo-card-container">
               <div class="video-card-square mdl-card">
                 <div class="mdl-card__title mdl-card--expand">
-                  <!--<iframe style="width: 480px; height: 270px" src="https://www.youtube.com/embed/sQOq3Ci4tB0" frameborder="0" allowfullscreen></iframe>-->
                   <iframe style="width: 480px; height: 270px; margin-left:auto; margin-right:auto; display:block" src="https://www.youtube.com/embed/s6JRY8qcjvA" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
                 </div>
                 <div class="mdl-card__actions mdl-card--border">
-                  <a class="mdl-button mdl-button--colored mdl-js-button mdl-js-ripple-effect" nofollow href="https://www.youtube.com/watch?v=sQOq3Ci4tB0">
+                  <a class="mdl-button mdl-button--colored mdl-js-button mdl-js-ripple-effect" nofollow href="https://www.youtube.com/watch?v=s6JRY8qcjvA">
                     PLDI 2020 talk on generating format conversion routines
                   </a>
                 </div>
@@ -175,8 +174,7 @@ <h1 class="mdl-typography--headline text-center titles-grey home-header">Media</
             <div class="mdl-cell mdl-cell--4-col demo-card-container">
               <div class="video-card-square mdl-card">
                 <div class="mdl-card__title mdl-card--expand">
-                  <!--<iframe style="width: 480px; height: 270px" src="https://www.youtube.com/embed/sQOq3Ci4tB0" frameborder="0" allowfullscreen></iframe>-->
-                  <iframe style="width: 480px; height: 270px; margin-left:auto; margin-right:auto; display:block" src="https://www.youtube.com/embed/s6JRY8qcjvA" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+                  <iframe style="width: 480px; height: 270px; margin-left:auto; margin-right:auto; display:block" src="https://www.youtube.com/embed/sQOq3Ci4tB0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
                 </div>
                 <div class="mdl-card__actions mdl-card--border">
                   <a class="mdl-button mdl-button--colored mdl-js-button mdl-js-ripple-effect" nofollow href="https://www.youtube.com/watch?v=sQOq3Ci4tB0">
@@ -188,7 +186,7 @@ <h1 class="mdl-typography--headline text-center titles-grey home-header">Media</
             <div class="mdl-cell mdl-cell--4-col demo-card-container">
               <div class="video-card-square mdl-card">
                 <div class="mdl-card__title mdl-card--expand">
-                  <iframe width="480" height="270" src="https://www.youtube.com/embed/Kffbzf9etLE" frameborder="0" allowfullscreen></iframe>
+                  <iframe style="width: 480px; height: 270px; margin-left:auto; margin-right:auto; display:block" src="https://www.youtube.com/embed/Kffbzf9etLE" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
                 </div>
                 <div class="mdl-card__actions mdl-card--border">
                   <a class="mdl-button mdl-button--colored mdl-js-button mdl-js-ripple-effect" nofollow href="https://www.youtube.com/watch?v=Kffbzf9etLE">
@@ -200,7 +198,7 @@ <h1 class="mdl-typography--headline text-center titles-grey home-header">Media</
             <div class="mdl-cell mdl-cell--4-col demo-card-container">
               <div class="video-card-square mdl-card">
                 <div class="mdl-card__title mdl-card--expand">
-                  <iframe style="width: 480px; height: 270px; margin-left:auto; margin-right:auto; display:block" src="https://www.youtube.com/embed/s6JRY8qcjvA" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+                  <iframe style="width: 480px; height: 270px; margin-left:auto; margin-right:auto; display:block" src="https://www.youtube.com/embed/eE38PC2ctFs" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
                 </div>
                 <div class="mdl-card__actions mdl-card--border">
                   <a class="mdl-button mdl-button--colored mdl-js-button mdl-js-ripple-effect" nofollow href="https://www.youtube.com/watch?v=eE38PC2ctFs">