Chat Macro Break

Hey im trying to make a chat macro for healing assignments. However I am unsure how to line break to a specific chat. This would be channel 6 the healer channel.

{diamond} Tank1 = Heal 1 and Heal 2 {diamond}
{star} Tank2= Heal 3 and Heal 4 {star}
Then another 3 lines of different tank/heals. When I do it currently its all type like a paragraph.

Does anyone know a way to fix this?