title: Install packages from a requiremets.txt file in a git repository
body: <p>I have a github link 
  <a href="https://github.com/xxxx/xxx/xx/master/requirements.txt" rel="nofollow noreferrer">https://github.com/xxxx/xxx/xx/master/requirements.txt</a>.
  I want to install all the packages from the above url to my local virtual environment.</p>