Merge branch 'release/0.0.88' into develop
test: fix some mistakes
src: add instance method 'isInvertible()'
test: add instance method 'isInvertible()' testings
readme: add instance method 'isInvertible()' api
lint: add some files for linting pass
npm: 0.0.88 -> 0.0.89
Merge branch 'release/0.0.89'