How do I add a link in the manufactuers description section?

Hello NastyJack, Thank you for your question. Here is a link to an article on how to link to a file on the server. I am happy to assist you, but I would need more information to provide a specific answer, such as how your website is built. For example, are you using Wordpress, Joomla, or The Builder? If you have any further questions, feel free to post them below. Thank you, -John-Paul