Support tutorial filenames with more than 3 "parts" separated by dashes
Support tutorial filenames with more than 3 "parts" separated by dashes

So that tutorial-one-spring-amqp.md matches.

rabbitmq/rabbitmq-website,rabbitmq/rabbitmq-website,rabbitmq/rabbitmq-website,rabbitmq/rabbitmq-website,rabbitmq/rabbitmq-website