1. Log in to your blogger account using your blogger email and
password.
2. Select Template tab on your dashboard, backup your
template and click on edit HTML button after backup your
template.
3. Now place your mouse cursor on the html box and press Ctrl+F
to find your search box and after this step you can see your html
search box on right top of your html box as my screenshot.
4. Now search for <head> tag in your search box. (Copy and paste
on your search box and hit enter)
5. You can see highlighted <head> tag after above step.
6.Copy and paste the code given in the below just above <head>