Problem:
The user would like to add some text to some taxonomy archives for SEO reasons. The text should be conditionally displayed depending on the current archive term.
Solution:
If the texts that you intend to add for SEO reasons, will be added for each term? I mean, if there will be a different text for each borough?
If that's the case, why not use taxonomy term fields, check this article https://toolset.com/documentation/user-guides/views/term-fields/
If you only want to have a condition on one or a few terms, you can use conditional blocks and choose the "Views shortcode", then the archive title, and make it equal to a static value in this format "{taxonomy name} : {term name}". Check this example from my install, where the taxonomy name is "Catégorie" (in French) and the term name is "Auto" http://prntscr.com/un1wkn
Relevant Documentation:
https://toolset.com/documentation/user-guides/views/term-fields/
