Swagger Markdown example in docs fails

[EthanL-LinkedAll]

This is the example from the docs:

using Oxygen
using SwaggerMarkdown

# Here's an example of how you can merge autogenerated docs from SwaggerMarkdown.jl into your api
@swagger """
/divide/{a}/{b}:
  get:
    description: Return the result of a / b
    parameters:
      - name: a
        in: path
        required: true
        description: this is the value of the numerator 
        schema:
          type : number
    responses:
      '200':
        description: Successfully returned an number.
"""
@get "/divide/{a}/{b}" function (req, a::Float64, b::Float64)
    return a / b
end

# title and version are required
info = Dict("title" => "My Demo Api", "version" => "1.0.0")
openApi = OpenAPI("3.0", info)
swagger_document = build(openApi)
  
# merge the SwaggerMarkdown schema with the internal schema
mergeschema(swagger_document)

# start the web server
serve()

It gives this error:

ERROR: LoadError: while parsing a block mapping at line 3, column 8: expected <block end>, but found YAML.BlockMappingStartToken at line 6, column 26

(I know this is supposed to be fixable by fixing the spacing, but I haven't been able to get it right yet, and even the example from the docs doesn't run, so I wonder if something might have changed.)