* Fix: 2-byte character support of slug
* Fix: Decodes slug to display slug
* Fix: Removed a logic of replaceDiacritics
* Fix: Fixed slugify to pass tests
* Fix: Fixed not to remove underscore
* Adds the test for slugify.js
* Fix: Fix to jump to heading
* Added a comment
* Fix: Created click event only linking to heading
* Fix: Fix to use handleLinkClick(e)
* Fix: Changed the regex rule
* Fix: Changed the regex rule of extractId