Add happy holi pic

app/my-dashboard/notifications/notifications.jade

@@ -9,6 +9,7 @@
     it will have same width, you can create a new .banner-row if you want place more banners
     in a new row
   .banner-row
-    a.banner.tco18(href="https://tco18.topcoder.com/",target="_blank",rel="noopener noreferrer")
+    // a.banner.tco18(href="https://tco18.topcoder.com/",target="_blank",rel="noopener noreferrer")
+    a.banner.happy-holi(href="https://topcoder.com/",target="_blank",rel="noopener noreferrer")
     a.banner.watson(href="https://cognitive.topcoder.com/")
       img(src=require("../../../assets/images/logo_white.png"), alt="TCO17")

assets/css/my-dashboard/notifications.scss

@@ -43,6 +43,10 @@
       background: url(../../images/banner-tco18-stage-3.jpg) center/cover;
       background-position: center top;
     }
+    &.happy-holi{
+      background: url(../../images/happy-holi.png) center/cover;
+      background-position: center top;
+    }
     &.watson{
       background: url(../../images/banner-watson.jpg) center/cover;
       padding-left: 64px;