title: GitHub Pushing for read-only
body: <p>I m new to Git so I am trying to learn git. Meanwhile When I am working on Git , </p>
  
  <blockquote>
    <p>ERROR: Permission to username/file.git denied to Username1.
    fatal: Could not read from remote repository.</p>
  </blockquote>
  
  <p>Please make sure you have the correct access rights
  and the repository exists.</p>
  
  <p>I encountered this error. By the way , File is only readable. How can I push ?</p>
  
  <ul>
  <li>git clone git@github.com:username/file.git </li>
  <li>git add Files.txt </li>
  <li>git add . </li>
  <li>git commit -a -m "Second Commit" </li>
  <li>git push git@github.com:username/file.git</li>
  </ul>
  
  <p>By the way git config </p>
  
  <pre><code>[core]
  repositoryformatversion = 0
  filemode = true
  bare = false
  logallrefupdates = true
  ignorecase = true
  precomposeunicode = false
  [remote "origin"]
  url = git@github.com:username/files.git
  fetch = +refs/heads/*:refs/remotes/origin/*
  [branch "master"]
  remote = origin
  merge = refs/heads/master
  </code></pre>