Missing space in lists when generating MKDocs

[pareion]

Hello!

We just started using this library and find it excellent. There is however a few minor issues when generating the MKDoc files.

Example:

We're using the following schema definition:

{
  "$schema": "https://json-schema.org/draft/2019-09/schema",
  "title": "Deployment",
  "type": "object",
  "description": "Environment config.",
    "properties": {
      "environment": {
        "type": "string",
        "description": "Which environment to use.",
        "default": "dev",
        "enum": [
          "test",
          "dev",
          "stage",
          "prod"
        ]
      }
  },
  "additionalProperties": false
}

The following json-schema-for-humans configuration

template_name: md
show_toc: False
with_footer: False
examples_as_yaml: True
template_md_options:
  badge_as_image: True
  show_heading_numbers: False
  properties_table_columns:
  - Property
  - Type
  - Title/Description

I suggest adding a new line in the json_schema_for_humans/templates/md/section_one_of.md file, but I'm not sure if it breaks anything.