Update content/controllers.md

Author: kamilmysliwiec

content/controllers.md

@@ -407,7 +407,7 @@ async create(createCatDto) {
 }
 ```
 
-> info **Hint** Our `ValidationPipe` can filter out properties that should not be received by the method handler. In this case, we can whitelist the acceptable properties, and any property not included in the whitelist is automatically stripped from the resulting object. In the `CreateCatDto` example, our whitelist is the `name, age and breed` properties. Learn more [here.](https://docs.nestjs.com/techniques/validation#stripping-properties)
+> info **Hint** Our `ValidationPipe` can filter out properties that should not be received by the method handler. In this case, we can whitelist the acceptable properties, and any property not included in the whitelist is automatically stripped from the resulting object. In the `CreateCatDto` example, our whitelist is the `name`, `age`, and `breed` properties. Learn more [here](https://docs.nestjs.com/techniques/validation#stripping-properties).
 
 #### Handling errors