Apply suggestions from code review

Co-authored-by: Dmitri Perunov <[email protected]>

Author: loic425

src/Component/src/StateMachine/StateMachineInterface.php

@@ -18,14 +18,12 @@
 interface StateMachineInterface extends BaseStateMachineInterface
 {
     /**
-     * Returns the possible transition from given state
-     * Returns null if no transition is possible
+     * Returns the possible transition from given state or null if no transition is possible
      */
     public function getTransitionFromState(string $fromState): ?string;
 
     /**
-     * Returns the possible transition to the given state
-     * Returns null if no transition is possible
+     * Returns the possible transition to the given state or null if no transition is possible
      */
     public function getTransitionToState(string $toState): ?string;
 }