Moved to splash in JPEG format

index.html

@@ -9,9 +9,9 @@
     <meta name="description" content="Ruble to USD exchange rate is important indicator of life level in Russia. It's like a roller coaster and reflect every dramatic moment in the history. Why not visualize it as a real roller coaster? It's so obvious, that even a russian name of this attraction in russian is 'American mountains'." />
     <meta name="keywords" content="ruble, usd, exchange rate, roller coaster, american mountains" />
     <meta name="twitter:card" content="summary_large_image" />
-    <meta name="twitter:image" content="https://underoot.dev/ruble-roller-coaster/splash.png" />
-    <meta itemprop="image" content="https://underoot.dev/ruble-roller-coaster/splash.png">
-    <meta property="og:image" content="https://underoot.dev/ruble-roller-coaster/splash.png">
+    <meta name="twitter:image" content="https://underoot.dev/ruble-roller-coaster/splash.jpg" />
+    <meta itemprop="image" content="https://underoot.dev/ruble-roller-coaster/splash.jpg">
+    <meta property="og:image" content="https://underoot.dev/ruble-roller-coaster/splash.jpg">
     <meta property="og:url" content="https://underoot.dev/ruble-roller-coaster/">
     <meta property="og:type" content="website">
     <meta property="og:description" content="Ruble to USD exchange rate is important indicator of life level in Russia. It's like a roller coaster and reflect every dramatic moment in the history. Why not visualize it as a real roller coaster? It's so obvious, that even a russian name of this attraction in russian is 'American mountains'." />