Update index.html

Added disclaimer text that learning paths may contain some AI-generated content, as required by AI Office / Matthew Crawford for launch of the Learning Path Assistant tool.

Author: dav-mac

themes/arm-design-system-hugo-theme/layouts/index.html

@@ -93,6 +93,7 @@ <h3 class="main-topic-title u-margin-top-1/2 u-margin-bottom-1/2">Install Guides
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         <p style="text-align: center; margin: 0 auto; margin-top: 16px; color: #A3A8AE;">All content is covered by the <a href="https://creativecommons.org/licenses/by-sa/4.0/" target="_blank" rel="noopener">Creative Commons License{{partial "general-formatting/external-link.html"}}</a>.</p>
+        <p style="text-align: center; margin: 0 auto; margin-top: 16px; color: #A3A8AE;">These Learning Paths may contain some AI-generated content.</p>
     </div>
 </div>