The entire section of http://graphql.org/graphql-js/ which contain the node.js tutorials isn't mentioned in the header or the footer of graphql.org. I think that's a shame since this section is very well written and frankly pure gold for anyone implementing with node.js.

I could only find links to the page though http://graphql.org/code/ and it's not that clear in there you're going to see a thorough tutorial. I think a link at least at the footer could be beneficial.

I found it only by googling.

I'll add that https://github.com/graphql/graphql-js readme clearly refers to this documentation.
references https://github.com/graphql/express-graphql readme file are a little more obscure.