Please could someone help with my email template

Hello,

I’m really struggling with creating a template just to show what I’ve highlighted in green, could someone provide an example I can try, I think once I get one right and working it will all click into place. I’ve tried so many examples today and nothing works and it’s not a strong point of mine.

This is my alert, it checks 2 instances if they return a 503 error on their healthcheck.

and

Thanks