Changelog 6.13.0 (#193) [skip ci]
Changelog 6.13.0 (#193) [skip ci]

* Update CHANGELOG.md

* Add link to flow docs [skip ci]

* type [skip ci]

cbishopvelti/babylon,PolymerLabs/babel,guybedford/babel,kaicataldo/babel,Skillupco/babel,hzoo/babel,hulkish/babel,hulkish/babel,jridgewell/babel,hulkish/babel,maurobringolf/babel,samwgoldman/babel,hzoo/babel,hzoo/babel,chicoxyzzy/babel,kellyselden/babel,kellyselden/babel,existentialism/babel,lightscript/babylon-lightscript,maurobringolf/babel,vadzim/babel,shuhei/babel,babel/babel,Skillupco/babel,kellyselden/babel,guybedford/babel,kaicataldo/babel,babel/babel,maurobringolf/babel,babel/babel,jridgewell/babel,kaicataldo/babel,samwgoldman/babel,shuhei/babel,vadzim/babel,wcjohnson/babylon-lightscript,existentialism/babel,samwgoldman/babel,jridgewell/babel,chicoxyzzy/babel,Skillupco/babel,claudiopro/babel,existentialism/babel,PolymerLabs/babel,shuhei/babel,guybedford/babel,chicoxyzzy/babel,kaicataldo/babel,chicoxyzzy/babel,Skillupco/babel,babel/babylon,babel/babel,PolymerLabs/babel,hzoo/babel,claudiopro/babel,jridgewell/babel,hulkish/babel,claudiopro/babel,kellyselden/babel