Add node resource_limits options

I need to fix the README, but I'm not sure if it's ideal to continue following the same format for these entries as it'll add a lot of bulk for things some people may most like not use. I also omitted a lot of "uncommon" options, should I have included them as well?
The rendered file isn't readable, but I'm not familiar enough with asciidoc to give better advice than your favorite search engine.