Update part13c.md

Author: ehye

src/content/13/en/part13c.md

@@ -1238,7 +1238,7 @@ router.get('/:id', async (req, res) => {
 })
 ```
 
-So now, the <i>User.findByPk</i> query does not retrieve teams, but they are retrieved if necessary by the <i>user</i> method <i>getTeams</i>, which is automatically generated by Sequelize for the model object. Similar <i>get</i>- and a few other useful methods [are automatically generated](https://sequelize.org/master/manual/assocs.html#special-methods-mixins-added-to-instances) when defining associations for tables at the Sequelize level.
+So now, the <i>User.findByPk</i> query does not retrieve teams, but they are retrieved if necessary by the <i>user</i> method <i>getTeams</i>, which is automatically generated by Sequelize for the model object. Similar <i>get</i>- and a few other useful methods [are automatically generated](https://sequelize.org/master/manual/assocs.html#special-methodsmixins-added-to-instances) when defining associations for tables at the Sequelize level.
 
 #### Features of models