Use raises-exception tag.

Author: rossbar

content/tutorial-svd.md

@@ -221,9 +221,10 @@ U.shape, s.shape, Vt.shape
 ```
 
 Note that `s` has a particular shape: it has only one dimension. This means that some linear algebra functions that expect 2d arrays might not work. For example, from the theory, one might expect `s` and `Vt` to be
-compatible for multiplication. However, this is not true as `s` does not have a second axis. Executing
+compatible for multiplication. However, this is not true as `s` does not have a second axis:
 
-```python
+```{code-cell}
+:tags: [raises-exception]
 s @ Vt
 ```