Update README to use the new config syntax (#5674)

* Update README to use the new config syntax

* use withPreparedSets

* Use withPreparedSets properly

* Remove unused use statement

build/target-repository/README.md

@@ -43,19 +43,18 @@ And modify it:
 
 ```php
 use Rector\Config\RectorConfig;
-use Rector\Set\ValueObject\SetList;
 use Rector\TypeDeclaration\Rector\Property\TypedPropertyFromStrictConstructorRector;
 
-return static function (RectorConfig $rectorConfig): void {
+return RectorConfig::configure()
     // register single rule
-    $rectorConfig->rule(TypedPropertyFromStrictConstructorRector::class);
-
-    // here we can define, what sets of rules will be applied
-    // tip: use "SetList" class to autocomplete sets with your IDE
-    $rectorConfig->sets([
-        SetList::CODE_QUALITY
-    ]);
-};
+    ->withRules([
+        TypedPropertyFromStrictConstructorRector::class
+    ])
+    // here we can define, what prepared sets of rules will be applied
+    ->withPreparedSets(
+        deadCode: true,
+        codeQuality: true
+    );
 ```
 
 Then dry run Rector: