Add a Blank row to a Office script that sorts several rows

Question

Hi,

I am not an experience user but I have recorded the script that sorts a range according to two conditions

first one is in column 15 believe in the code refers to index 14 , that column either has "Não" that should sort first and "sim" that should sort as last

this is that dynamic I keep changing this , the code below is working great, no issues but I want after the sorting to add a blank row between the last row with "não" and the first with "sim"

Perhaps in the screen shot attached is clear

Can someone help me add to the code a way to add such blank row?

Thanks