that code does not get added to the template.
you need to add that code manually for each page, the idea is that you have a content area in the CMS For the meta data for each page.
you need to add the meta developer notes code to the pages individually.
the template is for managing information that will be the same on each page. the title tag is usually in an editable region. code that you add in an editable region will not be applied to the pages based on the template.