Add your title and subtitle in the text fields. To bolden certain words, you can use HTML.
3
To add a footer, go to the "Footer" settings and add your footer text there. Note you can also include links in your footer by adding them as a source URL. More on links and icons in footers
here.
4
You can also add a logo in your header or footer by uploading an image. If you're adding an image to the footer, you can also add a link.
5
To adjust the space between your title and subtitle, go to "Layout" > "Space between settings"