unstructured

56e739b3 - fix: update md to reads umlauts on non-utf-8 files (#4037)

fix: update md to reads umlauts on non-utf-8 files (#4037) This PR updates the `partition_md` to reads files with non-utf8 encodings without fail. Closes issue https://github.com/Unstructured-IO/unstructured-api/issues/489