docs: Including reference to Windows port of nvm

[aaronpowell]

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[aaronpowell]

CLA signed!

[googlebot]

CLAs look good, thanks!

[dignifiedquire]

Thanks can you change the commit message to follow our guidelines please?

[aaronpowell]

ah, didn't realise there was a convention, sorry @dignifiedquire, I'll get that resolved 😄

[aaronpowell]

I wasn't sure how to set the footer part since it doesn't close any specific bug.

[dignifiedquire]

Thanks, you can leave out the footer if there is nothing to reference.