Add description to DB migration

Author: kdambekalns

Migrations/Mysql/Version20200716150451.php

@@ -6,7 +6,7 @@
 use Doctrine\DBAL\Migrations\AbortMigrationException;
 
 /**
- * Auto-generated Migration: Please modify to your needs! This block will be used as the migration description if getDescription() is not used.
+ * Add expires field to authorization table
  */
 class Version20200716150451 extends AbstractMigration
 {
@@ -16,7 +16,7 @@ class Version20200716150451 extends AbstractMigration
      */
     public function getDescription(): string
     {
-        return '';
+        return 'Add expires field to authorization table';
     }
 
     /**
@@ -26,7 +26,6 @@ public function getDescription(): string
      */
     public function up(Schema $schema): void
     {
-        // this up() migration is autogenerated, please modify it to your needs
         $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on "mysql".');
         $this->addSql('ALTER TABLE flownative_oauth2_client_authorization ADD expires DATETIME DEFAULT NULL COMMENT \'(DC2Type:datetime_immutable)\'');
     }
@@ -38,7 +37,6 @@ public function up(Schema $schema): void
      */
     public function down(Schema $schema): void
     {
-        // this down() migration is autogenerated, please modify it to your needs
         $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on "mysql".');
 
         $this->addSql('ALTER TABLE flownative_oauth2_client_authorization DROP expires');