(EASY) Adding a Hyperlink to a Website

I Will try my best to describe what i need as i dont really know alot of the terms or sayings so forgive me if i sound like stupid at times and if you have a question feel free to message me. My Website is GearheadMods.com. We sell Custom Controllers. We want to make it easier for customers to know what they are buying. On each product Page there is "Options" or what I like to call "Add Ons". as it stands each add on has a Name and Price (Example: Bullet Buttons + $19.99) what i would like to do is LEARN how to make the text of select add ons Hyper links to lead to a page that will give more info about that particular add on. (Example: <a target='_blank' href="[login to view URL]">Bullet Buttons</a> + $19.99) The issue im having is i cant seem to find where to put the hyper link. Once im taught i can add all the hyperlinks to every page myself. I Use Bigcommerce as a website host and Im not as familiar with Bigcommerce HTML (or HTML in general) so obviously im sort of lost at the moment. I WILL need someone to show me how to do this which is going to require someone to have teamviewer and be ready to connect. To any of you im sure this is most likely a 5-10 min job but to someone like me that knows nothing about this its a whole nother world. please feel free to ask any questions as im happy to answer them! thanks in advance!