To add text content (sections of your lab intended solely for reading):
Note: If you need to insert images in an .md file, refer in Adding images to .md files.
IMPORTANT: All .md files (apart from {exercise_name}_instructions.md) must be stored in the content folder. If this order is violated, this results in the lab malfunction.
If you need to add images to illustrate the theoretical material, see Adding images to .md files.