Katy here from Shopify! Thanks for posting.
Is this something that you would like to link from the product description? While we do have a bulk editing tool, this does not extend to product descriptions at this time.
However is there a specific reason you would like to link from here in this way? It is possible to do, but perhaps you might like to consider a FAQ page which would include all of this information directly from your navigation. Or, by incorporating product tabs into your description- info on this here.
Do let me know your thoughts- I'm happy to help where I can.
Ah ok- that's great!
To add this, first and foremost I would suggest creating a duplicate copy of your theme. Testing this in a duplicate version of your theme gives you a clean back up.
Just to make make you aware that loading more than one version of jQuery on a website at a time can increase the load time of pages/ may cause additional issues with your code. Most themes do already have this added (all Shopify free themes should have this). However if you are confident that your theme is not already using jQuery, I'm happy to help guide you.
To add this, you will need to go to your: Admin > Online store > themes > actions > edit code> theme.liquid
Just above the closing </head> tag at the bottom of this layout file, you can paste the following:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js" defer=”defer”></script>
Then, from here you can continue working through the rest of the instructions. Though do let me know if you need a hand.
Aw, I am sorry to hear that, but glad that you have a back up!
In this case, it may be that you did have jQuery added somewhere to your theme already.
I would love to have a look to best help you out. Could you share a link to your store with me so that I can see? This is helpful when troubleshooting here within our community. Though if you prefer not to share I can email you to check on this and see if I can help point you in the right direction.
Regarding each tab, a way to add content here is by creating a snippet in your theme:
Admin > online store > themes> actions > edit code> snippets
Then when you are replacing the code in your sections/product-template.liquid you can set this to include this new snippet name in single quotation marks like so:
Do let me know what works best for you - I am happy to help.