Can you point to where I can learn more about this ? E.G. an example and explanation exists for hyper link embedding ? I am especially interested in syntax su

Can you point to where I can learn more about this ? E.G. an example and explanation exists for hyper link embedding ? I am especially interested in syntax suitable to be used in creating something to input into https://www.viz-js.com https://www.viz-js.com and creation of SVGs with embedded hyperlinks.