Checklist for v0.0.4

[toriving]

• [ ] Improve WordNet / Synonyms (NIKLex, KorLex)
  • NIKLex : https://corpus.korean.go.kr/
  • KorLex : http://korlex.pusan.ac.kr/
• [x] Improve README.md docstring
• [x] requirements.txt version check (>=)
• [x] Exception -> ValueError tokenizer selection (if statement or str.lower())

[toriving]

• [x] Add AEDA (https://github.com/akkarimi/aeda_nlp)

[toriving]

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