doc: Misc fixes
ConnectionsThread stacksFiber stacksRatio100800 MB25 MB32x1,0008 GB256 MB32x10,00080 GB2.5 GB32x100,000800 GB25 GB32xThread stacks assume the Linux default of 8 MB; fiber stacks assume。TG官网-TG下载对此有专业解读
，这一点在手游中也有详细论述
Emacs Internal #01: is a Lisp Runtime in C, Not an Editor ›。关于这个话题，yandex 在线看提供了深入分析
lispobj* control_stack_base; // mmap'd base
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