Include visual indicator that Content Fragment comment notifications include a clickable link.

[#1]

Request for Feature Enhancement (RFE) Summary:	Email notification recipients struggle to see clickable links in email notifications for Content Fragment updates.
Use-case:	When a user is tagged in the comments for a CF, an email is sent to the tagged user's inbox, which contains a link to the CF where the comment is posted. The notification does not appear visually to look like a clickable link.
Current/Experienced Behavior:	Cannot discern notifications for comments contain a clickable link to the CF.
Improved/Expected Behavior:	Users should easily see the email notification contains a clickable link to the CF.
Environment Details (AEM version/service pack, any other specifics if applicable):	AEMaaCS 18493
Customer-name/Organization name:	Workday
Screenshot (if applicable):
Code package (if applicable):	n/a