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.

Adding a Subscription Link to Your YouTube Channel. The more subscribers you have on your YouTube channel, the more views your videos get.

Search Engine Land's Guide to SEO Chapter 3: HTML Code & Search Engine Ranking Success Factors explains HTML elements & using structured data.

A quick start Vue project that shows how to add the Vue Rich Text Editor Component to a Vue application. It includes a code snippet for adding the desired toolbar items to the toolbar and adding the ...