update nav internship desc

Author: hmillersarah

web-components/nav-header/nav-header.html

@@ -97,7 +97,7 @@ <h5>Advocates and ideas</h5>
                     </a>
                     <a href="ims-internship-2025.html" tabindex="-1">
                         <h5>IMS Customer Internship</h5>
-                        <p>Register for the May 2025 event today.</p>
+                        <p>Take your skills to the next level with our annual, in-person training event.</p>
                     </a>
                 </div>
                 <div>