title: fatal: Could not read from remote repository. Private repo
body: <p>I have access to private repository. I can see it in my github. After that I use 
  git clone and I make some changes on my local machine.</p>
  
  <p>Now I try to make git push on this repo and I can see: </p>
  
  <blockquote>
    <p>fatal: Could not read from remote repository.</p>
  </blockquote>
  
  <p>I saw .git/config and all urls are good.</p>
  
  <p>How to solve this problem?</p>
  
  <p><strong>SOLVED</strong></p>
  
  <p>Firstly I needed to create Fork of private project. Next Clone project to local machine and then add </p>
  
  <pre><code>git remote add uppstream githubURL
  </code></pre>
  
  <p>Next commit, add files and push. After that pull request. </p>