update get started btn color

Author: commit111

src/css/custom.css

@@ -117,7 +117,7 @@ img.unstyled {
   background-size: 200% 100%;
   background-position: 0 0;
   background-repeat: repeat-x;
-  background-image: linear-gradient(131deg, rgba(80, 54, 163, .67), rgba(63, 178, 175, .67) 50%, rgba(80, 54, 163, .67));
+  background-image: linear-gradient(131deg, rgba(1, 30, 80, 0.9), rgba(21, 103, 251, 0.9) 50%, rgba(1, 30, 80, 0.9));
   margin-right: 1rem;
   display: inline-block;
   font-size: smaller;