How to follow this pattern.

1. Clone docs/location.md to whatever.
2. Clone location.html to whaever. Wtthin this file change this line to match #1
   (yes, replace .md shown in #1 with .html)
   $('#doc').load("docs/location.html");
   
3. Point browser to your cloned version of https://redblue36.github.io/DataFormatDemoSwaggerUI/location.html to view the page.

As an aside, Stoplight Studio works pretty well to author the OAS and .md markdown. But can use whatever open tooling you like to author these files.