replace banner

_layouts/default.html

@@ -12,15 +12,15 @@
     <meta property="og:description" content="EuRuKo is the annual European Ruby Conference. Join us in Sarajevo, Bosnia &amp; Herzegovina in 2024 on 11th - 13th of September." />
     <link rel="canonical" href="https://2024.euruko.org" />
     <meta property="og:url" content="https://2024.euruko.org" />
-    <meta property="og:image" content="https://2024.euruko.org/assets/images/site/EuRuKo_banner.png" />
+    <meta property="og:image" content="https://2024.euruko.org/assets/images/site/banner.jpg" />
     <meta property="og:site_name" content="EuRuKo 2024" />
     <meta property="og:type" content="website" />
     <meta name="twitter:card" content="summary_large_image" />
     <meta name="twitter:site" content="@euruko" />
     <meta name="twitter:creator" content="@m_isabegovic" />
     <meta name="twitter:title" content="EuRuKo 2024" />
     <meta name="twitter:description" content="EuRuKo is the annual European Ruby Conference. Join us in Sarajevo, Bosnia &amp; Herzegovina in 2024 on 11th - 13th of September.">
-    <meta name="twitter:image" content="https://2024.euruko.org/assets/images/site/EuRuKo_banner.png">
+    <meta name="twitter:image" content="https://2024.euruko.org/assets/images/site/banner.jpg">
     <link rel="shortcut icon" type="image/png" href="/assets/images/logo.svg" />
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>