title: Git push and pull
body: <p>I have a git Repo, everything working good until when i  manually updated  the branch file in gitlab .I cannot push in to it anymore.
  When i use git push origin master, i get your update rejected because your branch is behind. I should use git pull .</p>
  
  <p>I tried updating using git pull origin master 
   i get your local changes to the following files will not be overwritten by merge. Please commit changes .
  But when i use git commit -m "" , i get no changes to commit .</p>
  
  <p>I would love to be able to push my updates to the branch file as usual.
  I am new to git please help</p>