Description
Describe the bug Nested unordered lists don't seem to work correctly.
To Reproduce
* AAA
* BBB
* CCC
* DDD
* EEE
* FFF
Expected behavior The page should show an unordered list containing items AAA, BBB, CCC, and FFF, and a nested unordered list under item CCC containing items DDD and EEE.
Screenshots
Current (incorrect) Idyll output for the above markdown:

For comparison, here's Jekyll's (correct) output for the same markdown:
I also checked this in GitHub's markdown readme renderer, and it's the same as Jekyll's.
Desktop (please complete the following information):
- OS: KDE Neon 5.19 (Ubuntu 18.04)
- Chromium
- 83.0.4103.61 (Official Build)
Additional context Based on the structure of the HTML output, Idyll seems to interpret this example as three separate top-level lists: (AAA, BBB, CCC), (DDD), (EEE, FFF).
I tried varying the indentation and the bullet characters; this didn't seem to change anything.