Fix wrong code to add

Author: yasulab

public/podcasts/30.md

@@ -6,7 +6,7 @@
     <img src='/podcasts/30.png' alt='Cover Photo'>
   </a>
   <div class='btn-cover'>
-    <a class='btn-blue' href='http        <!--<a href='#shownote'><i class="fa-solid fa-message-pen" style='color: #2275ca;'></i></a>-->s://www.youtube.com/watch?v=j4Us2yBqT2k&list=PL94GDfaSQTmJxxnapafkApHYgQUJ6ABUU&index=30' target='_blank' rel='noopenner'><i class='fa fa-youtube'></i> YouTube で聴く </a>
+    <a class='btn-blue' href='https://www.youtube.com/watch?v=j4Us2yBqT2k&list=PL94GDfaSQTmJxxnapafkApHYgQUJ6ABUU&index=30' target='_blank' rel='noopenner'><i class='fa fa-youtube'></i> YouTube で聴く </a>
     <a class='btn-blue' href='https://podcasters.spotify.com/pod/show/coderdojo-japan/episodes/030---Microbit---CoderDojo-e1s61rm' target='_blank' rel='noopenner'><i class='fas fa-podcast'></i> Podcast で聴く </a>
   </div>
 </div>