fix CI

Smit-create · Smit-create · commit e8d2565e6778 · 2023-04-07T17:05:48.000+05:30
diff --git a/lectures/short_path.md b/lectures/short_path.md
@@ -411,3 +411,6 @@ The total cost of the path should agree with $J[0]$ so let's check this.
 ```{code-cell} ipython3
 J[0].item()
 ```
+
+```{solution-end}
+```
