How can I API to get Wiki pages MD or HTML content?

I see the repository endpoint for getting files from a repository, and for getting files here.
I know I can specify a media encoding type to get rendered HTML or raw Markdown, but I see no way to get the contents of Wiki pages.

Considering the Wiki for any given repository can be cloned from a command similar to the one below:

git clone https://github.com/spikespaz/search-deflector.wiki.git

I should be able to get the files and then get their content using the media types the same way as a regular repository. For example, the below endpoint works to get the contents of the REAME.md file:

https://api.github.com/repos/spikespaz/search-deflector/contents/README.md

But If I wanted to get the wiki content for a specific page I would expect to use this below, but it doesn’t work.

https://api.github.com/repos/spikespaz/search-deflector.wiki/contents/Setup%20&%20Installing.md

What would be the proper way to get the content from a Wiki page rendered as HTML?

I don’t think it’s possible with the API, so you’ll either have to parse the Markdown yourself (don’t worry, your language probably has a library for it), or scrape it from the rendered wiki page.