I wish to generate a .docx file from markdown using pandoc.

My document ends with a bibliography in a References section, which I wish to set in two columns, with the main text occupying a single column.

# Example document

This text should occupy a single column

## References

Text after this point should occupy two columns

I'm using a Word template to format my document's styles, but can't work out how to include a section break, nor how to inherit section properties from the reference .docx.