Set Up Swagger UI

Download one of the releases from the Swagger UI repository
Move the dist folder into this swagger directory
Rename the dist folder to ui
Inside the ui folder, open the swagger-initializer.js file
Replace the url with the desired OpenAPI specification (in this case: ../ecomap.yml)

For more information: https://github.com/swagger-api/swagger-ui/blob/master/docs/usage/installation.md