docs(breaking): update breaking changes to include item sliding markup
docs(breaking): update breaking changes to include item sliding markup

driftyco/ionic,driftyco/ionic,driftyco/ionic,driftyco/ionic,driftyco/ionic,TillaTheHun0/ionic,TillaTheHun0/ionic,TillaTheHun0/ionic,TillaTheHun0/ionic