Add co-organiszers to the bottom with less-emphasized style/link

Author: yasulab

index.html

@@ -72,11 +72,18 @@
 	</a>
       </div>
 
-      <div style='margin-top: 2.0em; margin-bottom: 5.5em;'>
+      <div style='margin-top: 2.0em;'>
         <img src="/img/cover-photo.webp" loading="lazy" width='100%'
              alt="CoderDojo Object"
   	   title="CoderDojo Object" />
       </div>
+
+      <div style='margin-top: 2.0em; margin-bottom: 5.5em; font-size: 35%;'>
+	Coolest Projects Japan 実行委員会<br>
+	＆<br>
+	<a href='https://coderdojo.jp/about' style='text-decoration:none; color: #046;'>一般社団法人 CoderDojo Japan</a>
+      </div>
+
     </div>
   </body>
 </html>