How to create a new migrate in laravel

migrations.txt

# ADD NEW COLUMN id_policy INTO TABLE 
# action es - alter, update, create, add, drop, etc
# php artisan make:migration MIGRATION_NAME 
# --table=TABLENAME in case alter an existing table

php artisan make:migration add_id_policy_documents --table=documents

# after we have to modify our new migrate and add in the UP function
$table->integer('id_policy')->nullable();

# Also in DOWN function add
$table->dropColumn('id_policy');