update button color

Author: alicetragedy

app/assets/stylesheets/application.scss

@@ -196,7 +196,7 @@
    display: inline-block;
    margin: 2em 1em 2em 0;
    padding: 20px;
-   background-color: #e53f05;
+   background-color: #D82222;
    color: white;
    text-decoration: none;
    font-size: 1.2em;