Release 0.2.0

• chore: add eslint (718fea4)
• docs: update jsDoc (a6b65dc)
• feat: update types to indicate TokenPart is defaulted (43c2550)
• chore: format readme (5ac4454)
• feat: add token complete check and option to decode the header part of the token (f2303f1)
• Update readme.md (cd391c4)
• chore: lint (2388f12)