fix layout on /docs/security/how-clients-authenticate

Author: ujibang

docs/security/how-clients-authenticate.adoc

@@ -11,6 +11,8 @@ applies_to: both
 <script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"></script>
 <script src="/js/interactive-docs-config.js"></script>
 {% include interactive-docs-config.html %}
+++++
+
 === What You'll Learn
 
 In this guide, you'll learn how to:
@@ -34,8 +36,6 @@ In all examples below:
 The interactive examples on this page can automatically substitute these values.
 ====
 
-++++
-
 {% include get-restheart.adoc %}
 
 === Introduction