title: How to add a new dependency in requirements.txt file?
body: <p>I cloned a djangox repo to my local device</p>
  <p>I founded a requirements.txt file that contains some dependencies
  I wanna add a rest framework ( adding a new dependency ) to this file</p>
  <p>how could I do that, please ?!
  p.s: I usually use poetry that deals with pyproject.tomal
  but for using docker, I wanna use this one.</p>