Add allowNullablePropertyForRequiredField Readme

Author: VincentLanglet

README.md

@@ -17,7 +17,7 @@ This extension provides following features:
 * Provides correct return type for `Doctrine\ORM\EntityManager::find`, `getReference` and `getPartialReference` when `Foo::class` entity class name is provided as the first argument
 * Adds missing `matching` method on `Doctrine\Common\Collections\Collection`. This can be turned off by setting `parameters.doctrine.allCollectionsSelectable` to `false`.
 * Also supports Doctrine ODM.
-* Analysis of discrepancies between entity column types and property field types.
+* Analysis of discrepancies between entity column types and property field types. This can be relaxed with the `allowNullablePropertyForRequiredField: true` setting.
 
 ## Installation