docs: def build_requirements(docs_path, package_name="yacms"):
      """
      Updates the requirements file with yacms's version number.
      """
      mezz_string = "yacms=="
      project_path = os.path.join(docs_path, "..")
      requirements_file = os.path.join(project_path, package_name,
                                       "project_template", "requirements.txt")
      with open(requirements_file, "r") as f:
          requirements = f.readlines()
      with open(requirements_file, "w") as f:
          f.write("yacms==%s\n" % __version__)
          for requirement in requirements:
              if requirement.strip() and not requirement.startswith(mezz_string):
                  f.write(requirement)