Sort the versions from the latest to the oldest.

site/content/docs/versions.md

@@ -5,7 +5,7 @@ description: An appendix of hosted documentation for nearly every release of Boo
 
 {{< list-versions.inline >}}
 <div class="row">
-  {{- range $release := (index $.Site.Data "docs-versions") }}
+  {{- range $release := sort (index $.Site.Data "docs-versions") "group" "desc" }}
   <div class="col-md mb-4">
     <h2>{{ $release.group }}</h2>
     <p>{{ $release.description }}</p>