Change contributors shortcode styling so it's more compact (#1652)

Author: doup

sass/components/_contributors.scss

@@ -0,0 +1,6 @@
+.contributors {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
+  list-style: none;
+  padding: 0 !important;
+}

sass/site.scss

@@ -33,6 +33,7 @@
 @import "components/callout";
 @import "components/card";
 @import "components/container";
+@import "components/contributors";
 @import "components/example";
 @import "components/header";
 @import "components/icon";

templates/shortcodes/contributors.md

@@ -5,7 +5,7 @@
 
 A huge thanks to the {{ data.contributors | length }} contributors that made this release (and associated docs) possible! In random order:
 
-<ul>
+<ul class="contributors">
 {% for contributor in data.contributors %}
 <li>{{ contributor.name }}</li>
 {% endfor %}