There may be instances where you don't have an easy way to add a link. In that case, you can easily add an HTML hyperlink. You don't need a full class to learn HTML. It is fairly easy to learn.

Cascading style sheets (CSS) are browser instructions for styling HTML elements that can ... Android widgets let you add... How to Assign a Hyperlink in InDesign. A hyperlink is a Web page element ...

To add links to your Tumblr bio, you'll need to use a simple HTML code. Tumblr doesn't give you any sort of built-in way to add links yourself, so you'll have to copy and paste the code in manually.