renamed discreteCards to paperCards, discreteTags to buttonTags; got rid of discrete class in favor of pure hugo conditional styling

layouts/partials/showcase.html

@@ -3,7 +3,7 @@
     <div class="postlist gridView">
         {{ range (sort $showcasePosts "File.LogicalName") }}
             {{ if in .File.Dir .Site.Params.showcaseDir }}
-                <article class="card postlistitem {{ if .Site.Params.discreteCards }}discrete{{ end }}">
+                <article class="card postlistitem">
                     <div>
                         <h2>{{ .Title }}</h2>
                         {{ if .Params.image }}