variable contains a list of episode names ("slugs", to be precise;
"slug" is the episode name without '.md'). Therefore, when we
iterate over 'lesson_episodes' (in syllabus.html and navbar.html) ,
variable contains a list of episode names ("slugs", to be precise;
"slug" is the episode name without '.md'). Therefore, when we
iterate over 'lesson_episodes' (in syllabus.html and navbar.html) ,