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Read up here for full instructions with examples for lesson writing.
Use ## second or greater level headings (HTML <h2> and greater).
Reference images from the assets/ folder like so:

You can use the path /assets/my-image.png or assets/my-image.png, both will render in your local markdown preview; and when you connect the repository with a Learn Lesson, the assets will upload to Cloudinary and the paths will automatically be converted to a hosted URL, e.g.:

Many lessons should contain a time taken question, to collect and display a time badge. Optionally remove this if you don't want a time badge on the lesson:
- Approximately how long (in minutes) did this lesson take you to complete? {: .free_text_number #time_taken title="Time taken" points="1" answer="any" }