Updates were rejected because the tip of your current branch is behind hint: its remote counterpart. Merge the remote changes (e.g. 'git pull') code example

Example 1: git updates were rejected because the tip of your current branch is behind

git push -f origin master

Example 2: updates were rejected because the tip of your current branch is behind

# You can force push your local code status by -f 
# Do this, if you are sure that your commit status in local should be reflected in remote too. 
git push -f origin master