Improving denormalization

docs/9.0/reader/record-mapping.md

@@ -211,7 +211,7 @@ foreach ($csv->getRecordsAsObject(ClimaticRecord::class) {
 }
 ```
 
-Starting with version `9.17.0` you can get a more granular effect. To do so, you first need to disable the 
+Starting with version `9.17.0` you can get a more granular effect. To do so, you first need to disable the
 auto-conversion using `Denormalizer::disallowEmptyStringAsNull`. Once this is done you can either control
 the conversion at the field level using the option field `emptyStringAsNull` as shown in the example below:
 
@@ -236,6 +236,7 @@ flnail readonly class Car
     }
 }
 ```
+
 Just like with the `MapCell` attribute, if set to true the conversion will happen otherwise and by default, no conversion is done.
 
 ### Post Mapping
@@ -280,8 +281,8 @@ in the order they have been declared.
 
 <p class="message-info">The feature is available since version <code>9.13.0</code></p>
 
-The `League\Csv\Serializer\AfterMapping` attribute is deprecated in favor of the `MapRecord` attribute. The 
-example is left of reference.
+The `League\Csv\Serializer\AfterMapping` attribute is deprecated in favor of the `MapRecord` attribute.
+The example is left of reference.
 
 ```php
 use League\Csv\Serializer;