title: Heroku local and remote repo's different name
body: <p>I initialized a local heroku repo inside my project folder and it gave some random name. I didn't want that name so I renamed the app name in the remote heroku website to my project folder name. But now if I want to add some addons from commandline it(heroku) always looks for the old name &amp; comes out with error saying ' old-name app not found'. </p>
  
  <p>I copied the old-name though it doesnt exist physically (only inside the heroku config, I dont know where it is so I could modify manually) and tried the <code>heroku apps:rename newname --app oldname</code></p>
  
  <p>So I want to delete my local heroku initialization inside my project folder &amp; do it again from start. Guide me please.</p>
  
  <p>Thanks,</p>