Sorry in JA Magz ii template there is no special page to get this feature.
In JA Magz template there special layout and menu, type builds the support only AJ Magz template.
You can enable the author link in the JA Magzii template but it shows default contact view of the author.
Publish an article with a user account that is your author.
Now in Menu options> show author > Show and link author > yes.
Open components > contact> contact > create a new contact and select the user that you used to the created article here: http://prntscr.com/i2gh68
Now the author name is linked to the contact page you created.
This is default view of Joomla contact that link author to its profile page.
Before you are using JA Magz template has the special feature to show author page, unfortunately, there is no such option in this template.