Update docs.scss too for PR #348 and run `grunt`.

sass/docs.scss

@@ -64,6 +64,7 @@ body {
 .docs-sub-header {
   position: relative;
   background-image: linear-gradient(45deg, #0a1855 0%,#da0024 100%);
+  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#0a1855', endColorstr='#da0024', GradientType=0 );
 }
 .docs-header {
   height: 100vh;