In Finnish/Swedish/other keyboard layouts the `option` key is needed to
type some common characters such as `{[]}~` (#973) so make mapping it to
`meta` conditional.
- lists were not correctly indented sometimes
- **note** and such things do not exist in org
- Note and Important
- Change Feature list to heading
- Change TODOS to actual org TODOS
- Add TOC to python layer
- list indentation
- some typos I could not leave unchanged
- TODO formatting
- List indentation
- typos
- wrong markup
fix conversion issues
