mdtablefix 0.6.1

`mdtablefix` unb0rks and reflows Markdown tables so that each column has a uniform width. When the `--wrap` option is used, it also wraps paragraphs and list items to 80 columns.

Documentation

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3. A `if __name__ == "__main__"` guard that calls `sys.exit(asyncio.run(
   check_migrations_cli()))`.