Adding links to a blog comment

This post is for the true tech geek!   I just learned how to add a link when I am commenting on a blog post (or at least one way to do it)  
1.Copy and paste the following code into the comment where you wish to add the link: 
<a href="www.google.com">Home</a>
2.  Delete www.google.com and substitute the target website URL
3.  Delete Home and substitute the name of the website.

Now I just need to figure out where to put this code statement so I can easily access it when I need it!