Fix some problems for MacOs and readme.md#289

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Likenttt wants to merge 2 commits intofelixonmars:masterfrom

Likenttt:master

Commits on Feb 22, 2020

fix:install.sh no x right&&macos cp new folder problem&&sed need a white character&&start dnsmasq
lichuanyi
committed

Commits on Feb 23, 2020

Merge pull request #1 from felixonmars/master
KentLee
authored