fix(curriculum): add missing closing backticks to a block in review-javascript (#66617)

curriculum/challenges/english/blocks/review-javascript-audio-and-video/6723cf27c6e9a0c3f3041385.md

@@ -29,6 +29,7 @@ dashedName: review-javascript-audio-and-video
     audio.play();
   });
 </script>
+```
 
 :::
 
@@ -55,6 +56,7 @@ dashedName: review-javascript-audio-and-video
     });
   });
 </script>
+```
 
 :::
 

curriculum/challenges/english/blocks/review-javascript/6723d3cfdd0717d3f1bf27e3.md

@@ -3191,6 +3191,7 @@ console.log(date.toLocaleDateString("en-GB", options)); // "Wednesday, 15 Octobe
     audio.play();
   });
 </script>
+```
 
 :::
 

curriculum/challenges/english/blocks/review-js-a11y/683766860f71d4a96e429f3a.md

@@ -24,12 +24,14 @@ dashedName: review-js-a11y
     btn.setAttribute("aria-expanded", String(!expanded));
   });
 </script>
+```
 
 :::
 
 - **`aria-haspopup` attribute**: This state is used to indicate that an interactive element will trigger a pop-up element when activated. You can only use the `aria-haspopup` attribute when the pop-up has one of the following roles: `menu`, `listbox`, `tree`, `grid`, or `dialog`. The value of `aria-haspopup` must be either one of these roles or `true`, which is the same as `menu`.
 
 :::interactive_editor
+
 ```html
 <button
   id="menubutton"
@@ -328,4 +330,3 @@ Here is an example of a live region that is dynamically updated by JavaScript:
 # --assignment--
 
 Review the JavaScript and Accessibility topics and concepts.
-