RELATE validation is not available to install on local computer

[youbaowangsheng]

In RELATE Document-Writing content for RELATE(https://documen.tician.de/relate/content.html#writing-content-for-relate)

RELATE validation is also available as a stand-alone script :command:relate-validate.
This runs independently of git and the web site on the content developer's
computer and provides validation feedback without having to commit and
upload the content to a RELATE site. This script can be installed by running::

  sudo pip install -r requirements.txt
  sudo python setup.py install

in the root directory of the RELATE distribution.

But, in the root directory of RELATE, there is no requirements.txt file at all.
Does anyone have encountered the same problem as me?

[Andreas Klöckner]

Thanks for the report. #938 updates those instructions.