add branch code example

Example 1: git create new branch

// Example for creating a new branch named myNewBranch
git checkout -b myNewBranch

// First Push
git push --set-upstream origin myNewBranch

Example 2: git command to create a branch

//Create a New Branch
git checkout -b [name_of_your_new_branch]
//First Push
git push --set-upstream origin [name_of_your_new_branch]

Example 3: git create branch

$ git checkout -b iss53
Switched to a new branch "iss53"