style: grey out Class 6 link (not yet available)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

index.html

@@ -231,13 +231,13 @@
       <span class="row-meta">Mar 26</span>
     </a>
     <div class="row-desc" style="padding: 0 0 0.5rem; margin-top: -0.4rem;">Setup, AGENTS.md, context files, building your first skill</div>
-    <a class="row" href="#">
+    <div class="row" style="opacity: 0.4; pointer-events: none;">
       <div class="row-left">
         <span class="row-title">Class 6 — Build, Code &amp; Ship</span>
       </div>
       <span class="row-meta">Apr 9</span>
-    </a>
-    <div class="row-desc" style="padding: 0 0 0; margin-top: -0.4rem;">Codex deep dive, code building, MCP, from prototype to daily driver</div>
+    </div>
+    <div class="row-desc" style="padding: 0 0 0; margin-top: -0.4rem; opacity: 0.4;">Codex deep dive, code building, MCP, from prototype to daily driver</div>
   </section>
 
   <!-- Resources -->
@@ -255,7 +255,7 @@
   </section>
 
   <footer>
-    Florent Daudens &middot; <a href="https://huggingface.co/spaces/CUNY-Builders/course-material">Hugging Face</a>
+    Florent Daudens
   </footer>
 
 </div>