auth-me-baby.md: path names are not but should be consistent with other modules

[YmerejRedienhcs]

Other modules quote paths like, app/templates/application.hbs (from 3-addons.md). This module quotes paths like "/config/environment.js".

Modules should name paths in a consistent way. I prefer not having the leading '/' because it's easier to copy and paste and use in a terminal. When the starting '/' is included, then I have to either carefully not copy the leading '/', or manually precede it with a "."