title: Why we use git remote add origin for the first time?
body: <p>After I create a folder with some files, and I want to push them, I need to make it in this order</p>
  
  <pre><code>git remote add origin "github repo link"
  git push origin master
  </code></pre>
  
  <p>And it is successfull.But after my first push,
  and some changes to the file then the pushing works with only
  <code>git push origin master</code></p>
  
  <p>Why i need <code>git remote add origin "github repo link"</code>
  for the first time?</p>