Add Download link to latest version tag; bump date

Signed-off-by: Roger Sheen <[email protected]>

download.html

@@ -15,7 +15,7 @@ <h1 class="display-3">{{ page.title }}</h1>
       >
         {% octicon download %} DITA-OT {{ site.version }}</a
       >
-      released March 1, 2024
+      released March 24, 2024
     </p>
     <p class="lead">
       For details on the changes in this version, see the
@@ -45,6 +45,11 @@ <h2 id="recent_versions">
   <div class="container row">
     <ul class="list-group col-md-6 col-lg-4 col-xl mb-4">
       <li class="list-group-item list-group-item-action list-group-item-success">
+        <a href="https://github.com/dita-ot/dita-ot/releases/tag/4.2.2"
+          >4.2.2 <i class="font-weight-light small text-muted float-right mt-1">2024-03-24</i>
+        </a>
+      </li>
+      <li class="list-group-item list-group-item-action">
         <a href="https://github.com/dita-ot/dita-ot/releases/tag/4.2.1"
           >4.2.1 <i class="font-weight-light small text-muted float-right mt-1">2024-03-01</i>
         </a>