Panino Theme: Adding code to the head

Hi Support,

I don't want to mess anything up as Upfront is one of those.... I had a request from a client to do the following, can you tell me the best place to add this to her site so it doesn't intefere with anything?

Instrcutions I got:

Could add this coding into thesite so we can get it verified by Pinterest?

Copy and paste this tag to the <head> section of your website’s index.html file.

<meta name="p:domain_verify" content="f50167f469f651dc7fd2fac9ba4691ee"/>


PS: I've enabled support access should you need to take a closer look.