Schema-markdown

- [e43aa15](https://github.com/craigahobbs/schema-markdown/commit/e43aa15) - tweak error message, improve unit tests

- [f7f0bfe](https://github.com/craigahobbs/schema-markdown/commit/f7f0bfe) - add pyproject.toml and setup.cfg, remove setup.py

- [fe59a59](https://github.com/craigahobbs/schema-markdown/commit/fe59a59) - update docs

- [e5d8e65](https://github.com/craigahobbs/schema-markdown/commit/e5d8e65) - refactor SchemaMarkdownParser class as parse_schema_markdown function

- [8c702f4](https://github.com/craigahobbs/schema-markdown/commit/8c702f4) - remove TypeModel

- [43be8fe](https://github.com/craigahobbs/schema-markdown/commit/43be8fe) - add python 3.11 support

- [633e57c](https://github.com/craigahobbs/schema-markdown/commit/633e57c) - allow arbitrary quoted enum values