Develop (#2)

* update

* update

* split to separate files

* update settings description

* fix

* version up

* fix

---------

Co-authored-by: Jakub Bełch <jakub.belch@detable.pl>

README.md

@@ -2,9 +2,9 @@
 It works with theme eg. [Things](https://github.com/colineckert/obsidian-things) which presents states with pretty icons
 
 This is a plugin which handle with 3-state checkbox
-- [ ] unchecked
-- [/] partially done 
-- [x] done
+- `- [ ]` unchecked
+- `- [/]` partially done 
+- `- [x]` done
 
 and multistate checkboxes (customizable) with defaults [Quick Reference](https://github.com/colineckert/obsidian-things/blob/main/assets/checkbox-styles.png):
 - [!]