feat: add gomod (#1)

* feat: add go.mod

* chore: refactor var using one bracket

* chore: refactor template

* feat: colored questions

* chore: refactor template

* feat: show banner when -h flag present

* chore: refactor version to dev

* chore: update readme

* chore: refactor questions

* chore: update readme, add more project descriptions

* chore: fix link template