ヘッダー、フッターの画像を webp に置き換え

Author: mucho613

_includes/footer.html

@@ -1,6 +1,6 @@
 <footer class="site-footer">
   <div class="footer-logo">
-    <img src="/img/2025/common/footer-logo.png" alt="DojoCon Japan 2025 Inspire Next." />
+    <img src="/img/2025/common/footer-logo.webp" alt="DojoCon Japan 2025 Inspire Next." />
   </div>
   <div class="footer-social">
     <a href="https://x.com/{{ site.x }}" target="_blank" rel="noopener" class="social-x" aria-label="X">

_includes/header.html

@@ -1,5 +1,5 @@
 <h1 class="max-w-lg mx-auto pt-5 px-8">
   <a href="/">
-    <img src="/img/2025/common/header-logo.png" alt="DojoCon Japan 2025 Inspire Next." />
+    <img src="/img/2025/common/header-logo.webp" alt="DojoCon Japan 2025 Inspire Next." />
   </a>
 </h1>