Update file homepage.css

static/homepage.css

@@ -587,7 +587,7 @@
     margin: 0 auto;
     width: 400px;
     height: 300px;
-    background: url(https://static.igem.wiki/teams/5054/software.png);
+    background: url("https://static.igem.wiki/teams/5054/software-step1.png");
     background-repeat: no-repeat;
     background-size: 91%;
     background-position: center;