code: def add_markdown_cell(work_notebook, text):
      """Add a markdown cell to the notebook
  
      Parameters
      ----------
      code : str
          Cell content
      """
      markdown_cell = {
          "cell_type": "markdown",
          "metadata": {},
          "source": [rst2md(text)],
      }
      work_notebook["cells"].append(markdown_cell)
  
file_path: tensorly/doc/sphinx_ext/sphinx_gallery/notebook.py
imports: from __future__ import division, absolute_import, print_function
  from functools import partial
  import argparse
  import json
  import re
  import sys
  from .py_source_parser import split_code_and_text_blocks
label_desc: Use image node_id 6 for calling a global function with example usage: add_markdown_cell(work_notebook, text) without return types