Add Continous Integration

[SebChw]

closes #10

[kordc]

nice, maybe before flake8 we should add black/autopep8?
autopep8 is default in VSC https://code.visualstudio.com/docs/python/editing#_general-formatting-settings

[SebChw]

@kordc what do you mean? You want the code to be formatted automatically when pushed? If yes, I'd rather people formatted code by themselves to be aware of this.

[kordc]

@SebChw yep, I meant that. But fair enough, not a necessary thing to do. If so, the rest LGTM

[SebChw]

@kordc If we do this people won't know that they wrote badly formatted code, that's why I don't want to do so.