How to add image with hyperlink at the top of my homepage?

Hey there everybody. I wish to include a picture including my Twitter account on top of my homepage. I attempted doing this with the header picture yet obviously it’s not that straightforward. When you open my website or any kind of website, there’s the website title, after that under it is the tagline. I wish to include a picture with a link under the tagline ideally, or at the very least someplace in the top. Exists a simple this?

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