from __future__ import annotations

from typing import Iterable, Sequence


def md_table(headers: Sequence[str], rows: Iterable[Sequence[str]]) -> str:
    """Render a simple GitHub-flavored Markdown table.

    Args:
        headers: Column header strings.
        rows: Row values.

    Returns:
        Markdown table as a single string.
    """

    header_line = "| " + " | ".join(str(h) for h in headers) + " |"
    sep_line = "| " + " | ".join(["---"] * len(headers)) + " |"
    body_lines = ["| " + " | ".join(str(cell) for cell in row) + " |" for row in rows]
    return "\n".join([header_line, sep_line, *body_lines])