Added 'trackTime'

• Added 'engines' in package.json as required by the 'np' package used for publishing 7ab153d
• Added 'trackTime' and related changes / refactoring a170bc6
• Updated rollup.generated-config.json by running > helpmate@1.5.5 start > npm run start:build e923f07
• Updated the npm package note-down 856219e
• Updated an npm package 1e77349
• Updated an npm package 639dcba
• Updated an npm package c302057
• Updated some npm packages 405be80
• Now using Node.js v16.20.1 3e96d84
• Updated package-lock.json 6559921

v1.5.5...v1.5.6