⚒ (chore) Update refs to nodejs and/or node in .github/*.md

[indexzero]

Raw & unmodified .github/ISSUE_TEMPLATE.md follows to illustrate the issue.

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[varjmes]

Thanks for this! We're doing this slowly but It might be good to start compiling a list of documents to amend, in order of importance.

[mcataford]

I would love to pitch in if you need extra hands!

[nikniv]

I would also like to help!