[doc] updated section about node-htmlparser
[doc] updated section about node-htmlparser

kirbysayshi/node-htmlparser,frontapp/htmlparser2,magicode/htmlparser2,mail-apps/htmlparser2,fasterize/node-htmlparser,jasonsanjose/htmlparser2,jasonsanjose/htmlparser2,mail-apps/htmlparser2,frontapp/htmlparser2,broadly/htmlparser2,broadly/htmlparser2,magicode/htmlparser2