Merge branch 'Change_market_image' into 'master'

Change_market_image

See merge request control/artfi!29

app/static/css/style.css

@@ -20,7 +20,7 @@ body {
 #market_top {
     width: 100%;
     height: 80vh;
-    background: url("../templates/market_top.gif") top left;
+    background: url("../templates/market_top.jpg") top left;
     background-size: cover;
     position: relative;
   }