Issue #2983015 by manish-31: In RevisionsController.php, \Drupal\node\Entity\Node class should be imported using 'use' keyword

Issue #2983064 by manish-31: Unnecessarily importing class Drupal\Core\Url and class Drupal\Core\Routing\RouteMatchInterface should be imported using 'use'

Issue #2983069 by manish-31: Change the array format according to Drupal 8 coding standards in RevisionFrom.php file

Issue #2983077 by manish-31: The url to find all node revisions provided in the Readme file is incorrect