* define npm run coverage
* Revert "define npm run coverage"
This reverts commit 32133d33412105d167226ac31c4f7875f85716ab.
* use coverallsapp/github-action@master
* Give --coverage option to npm test
* Add coveralls badge
* Get GitHub access token from input
* install npm package
* fix TypeScript error to successfully build
ref: https://github.com/actions/toolkit/issues/199
* npm i strip-ansi to remove control characters
* create an issue
* use template literal to pass lint
* npm run format; npm run lint
* use inputs.issue_title as issue title
* document inputs.issue_title
* add inputs.issue_title
