Update iframe title for Week 5 video

Author: neuromechanist

courses/agentic-research/week-05.md

@@ -19,7 +19,7 @@ The single most useful idea in this session: **a literature review has a Definit
 <div class="embed-container">
   <iframe
     src="https://www.youtube.com/embed/3SiigHNZMMs"
-    title="Week 4: CI/CD and Code Quality"
+    title="Week 5: Literature Search and Review"
     frameborder="0"
     allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture"
     allowfullscreen>