ronny abraham c8c455eb66 L20		2025-03-02 14:23:05 +02:00
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lesson-17.org	changed toc	2025-02-16 13:19:50 +02:00
lesson-18.org	added body energy testing	2025-02-19 02:27:31 +02:00
lesson-19.org	added superheroes l18	2025-02-27 02:03:50 +02:00
lesson-20.org	L20	2025-03-02 14:23:05 +02:00