feat: eslint (h5bp#78)

* chore: add eslint

* chore: vscode prettier formating

* ci: lint workflow

* ci(lint): run on node 14

* chore: vscode recommended extensions

* chore: add eslint recommended plugin

Update CHANGELOG.md

Updated version to 0.2.0-RC1

added a description

Merge pull request h5bp#16 from vltansky/master

fix: node opens index.js instead of running closes h5bp#15

0.1.0-RC1