v3.0.20b

Remove unnecessary note model description

v3.0.19b

Implement option to have multiple card types

#26

v3.0.18b

Add another cloze note type that supports extra content

v3.0.17b

Fixes related to cloze syntax

But generally if a heading is not a subdeck or heading it should not be
subject to be overwritten.

See #25

v3.0.16b

Enable support for cloze syntax

v3.0.15b

Escape anki subdeck separators in headings

and math section content in anki decks to avoid creating additional html structure

v3.0.14b

Minor fix in help output documentation

v3.0.13b

Bump version and make program runnable using the -m flag