There are no set templates. What a user journey map looks like depends on who the audience for the user journey is.
If you are using a journey map to communicate with an EXECUTIVE COMMITTEE, it is a good idea to add illustrations to each step (much like a comic book or storyboard).
If the journey map is to communicate to DEVELOPERS, you can use a text-based journey map.
Include a picture of the persona the journey relates to, and include a title that summarizes the journey (e.g. "How to create a user journey map")
Have a series of steps in short, concise text.
If deemed necessary, an illustration of what's happening at each step can be a nice addition.
1234 Journey Lane
San Francisco, CA 94101
Phone: +1 (0) 000 0000 001
Fax: +1 (0) 000 0000 002