Adding a meta tag to the layouts/partials/head.html

I have a site created using Hugo, however I use the site’s domain name as the custom domain in the Go import path. Ex: go get

I looked through the document: Site Variables which suggests that I add the meta tag in the layouts/partials/head.html file. But since I am referring to my theme as a submodule I cannot change it, is there any configuration in my hugo project that I can change for it to automatically add this meta tag when the files are getting generated in the public folder?

copy this partial from theme disrectory tree to the upper layouts directory.
Modify there the partial, it will found first