Add Docker as a gVisor netstack user.

PiperOrigin-RevId: 621599005

website/users/index.html

@@ -114,6 +114,27 @@ layout: base
       </div>
     </div>
     <hr>
+    <!-- Docker -->
+    <div class="row display-flex no-space">
+      <div class="col-md-12">
+        <h2>
+          <a href="https://www.docker.com/" class="feature-link">
+            Docker
+          </a>
+        </h2>
+        <p class="info-text">
+          Docker is a popular container management engine.
+        </p>
+        <p class="info-users-text">
+          Docker for Mac
+          <a href="https://docs.docker.com/desktop/release-notes/#4190">uses the gVisor network
+            stack library</a> for better performance than <code>vpnkit</code>.
+          Note that on Docker for Linux, you can
+          <a href="/docs/user_guide/quick_start/docker/">use gVisor as a container runtime</a>.
+        </p>
+      </div>
+    </div>
+    <hr>
     <!-- Google -->
     <div class="row display-flex no-space">
       <div class="col-md-8">