README recommends installing node-9 via 3rd party source

[bencef]

See https://github.com/CodecoolBase/super-sprinter-3000-python/blame/67e3e6b768ad8028487ffe594030bb8f32248252/test/README.md#L11

Recommendation:

• recommend installing the latest LTS version via an official package (wherever possible)

[abence]

Hey am I supposed to do something here?

[bencef]

If you feel like it. I just thought bringing this issue to notice.