--max-semi-space-size doc is wrong after Node 18

[joebowbeer]

Thanks for writing content/post/tech/node.js-20-upgrade-heap-issues !

I created an issue for the node docs and a PR to update the docs

[ztec]

😲 Nice. Well done.

And Thank you 🤗. I will include it in an update.

[joebowbeer]

Slight correction: nodejs/node#55812