Add `for…from` to list of ES2015 exceptions in the introduction (#4373)
Add `for…from` to list of ES2015 exceptions in the introduction (#4373)


xixixao/coffee-script,cosmicexplorer/coffeescript,decaffeinate/coffeescript,jashkenas/coffeescript,shreeve/coffeescript,AndersonFirmino/coffeescript,AndersonFirmino/coffeescript,jiangmiao/toffee-script,sjbarag/coffeescript,mrmowgli/coffeescript,jiangmiao/toffee-script,jiangmiao/toffee-script