Nested lists with task list checkboxes drop levels

This nested list containing task list checkboxes drops levels (e.g. the link to Bootstrap should be nested below the Bootstrap checkbox):

- https://en.wikipedia.org/wiki/Responsive_web_design

- [ ] Pick a CSS framework
  - [ ] Bootstrap
    - https://en.wikipedia.org/wiki/Bootstrap_(front-end_framework) 
  - [ ] Other:
    - https://en.wikipedia.org/wiki/CSS_frameworks

• https://en.wikipedia.org/wiki/Responsive_web_design

• Pick a CSS framework

  • Bootstrap
    • https://en.wikipedia.org/wiki/Bootstrap_(front-end_framework)
  • Other:
    • https://en.wikipedia.org/wiki/CSS_frameworks