Trying to add an annotation that has a clickable link to a field within a section

GEM1
Tera Expert

Trying to add a clickable link within the UI form ONLY.  They want to be able to access this form and below the Information Security Classification field they want a line of text that is clickable and will send them to a knowledge article and eventually an external link.  I tried using this post to help but I dont have the html option.  Is this even doable?
Solved: Adding a link to the form - ServiceNow Community

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