Update shared assets from https://github.com/ecosyste-ms/documentation

app/assets/stylesheets/ecosystems.scss

@@ -23,7 +23,7 @@ $color-grey-dark: #4C4C61;
 /* Tokens to override bootstrap colours */
 $primary: $color-purple;
 $secondary: $color-grey;
-$success: $color-green;
+$success: $color-green-dark;
 $info: $color-purple-light;
 $warning: $color-orange-light;
 $danger: $color-orange-dark;