diff --git a/src/slides/10-useful-links.md b/src/slides/010-useful-links.md
similarity index 100%
rename from src/slides/10-useful-links.md
rename to src/slides/010-useful-links.md
diff --git a/src/slides/08-example-3.md b/src/slides/08-example-3.md
index a6eb3e9..0570e6d 100644
--- a/src/slides/08-example-3.md
+++ b/src/slides/08-example-3.md
@@ -85,6 +85,10 @@
   </ul>
 </details>
 
+* 57 lines of code
+* Keyboard & screen reader support
+* `open` attribute lets us style the summary differently if it's open or closed
+
 </div>