I think the standard is secondary in importance here. What matters is that people are made aware of requirements and changes to them. How that is done is not important - just make it part of your process so people know what to expect. My most recent client highlights changes in yellow in their work documents. When I ask people what it means and they all say "That shows a change" the process was successful.Too many implementations, more important is what is the requirement of the standard.
Show me where, it requires a template for modifications?
The method for managing change is a different question. The format is part of the document control process. Some people use Outlook email with the Voting button feature to send around a changed document with Track Changes turned on. The voting button captures evidence of approval or rejection and may even allow comments if people use that feature instead of sending in the email body. If you do this, that email becomes the template. Others have special software to manage the change routing. Others can use any sort of Engineering Change Notice (ECN) format. ISO 9001:2015 does not specify a format but it makes sense to try to standardize the method.