old_contents: """
  Converts readme from github repo page to mkdocs-friendly
  """
  from pathlib import Path
  
  original_text = Path(__file__).parent.parent.joinpath('README.md').read_text(encoding='utf-8')
  
  
  def replace_with_video_tag(line: str):
      if line.startswith('https://') and line.endswith('.mp4') and ' ' not in line:
          # treating as link to mp4 file.
          return f"""
          <video width="800" controls><source src="{line}" type="video/mp4"> 
          Your browser does not support the video </video>\n\n<br />\n\n<br />
          """.strip()
      else:
          # other lines are not touched
          return line
  
  
  new_content = '\n'.join([
      replace_with_video_tag(line)
      for line in original_text.splitlines()
  ])
  # save contents
  docs_index = Path(__file__).parent.parent.joinpath('docs_src', 'index.md')
  assert docs_index.parent.exists()
  docs_index.write_bytes(
      new_content.encode('utf-8')
  )
  print('Converted README.md')
new_contents: """
  Converts readme from github repo page to mkdocs-friendly
  """
  from pathlib import Path
  
  original_text = Path(__file__).parent.parent.joinpath('README.md').read_text(encoding='utf-8')
  
  
  def replace_with_video_tag(line: str):
      if line.startswith('https://') and line.endswith('.mp4') and ' ' not in line:
          # treating as link to mp4 file.
          return ""
          # return f"""
          # <video width="800" controls><source src="{line}" type="video/mp4">
          # Your browser does not support the video </video>\n\n<br />\n\n<br />
          # """.strip()
      else:
          # other lines are not touched
          return line
  
  
  new_content = '\n'.join([
      replace_with_video_tag(line)
      for line in original_text.splitlines()
  ])
  # save contents
  docs_index = Path(__file__).parent.parent.joinpath('docs_src', 'index.md')
  assert docs_index.parent.exists()
  docs_index.write_bytes(
      new_content.encode('utf-8')
  )
  print('Converted README.md')
subject: remove video from documentation