Add Text/Tagline Under Logo in Venture Theme

[leeroyster]

Good Morning

I've checked out a few threads on this but struggling as I think they're old now, and I can't seem to get anything working. Closest I got to was the thread here, but I receive errors, unfortunately.

Essentially, I have set the store name in the Store Details section of settings, but now like to add a small amount of tex (same font, slightly smaller size) just underneath this, so that the top banner of the site shows both the name and the tagline underneath. 

I did achieve this using an image, but unfortunately, it renders differently and sometimes badly on various devices, so I'd like to resort to native text if at all possible?

I'm sure it's only 1 or 2 snippets of code 🙂

Thank you,
Lee