Git Remote

// test mode of communication https or ssh
git remote -v

// if https you will get
origin  https://git.gitbook.com/hemantajax/css-flexbox.git (fetch)
origin  https://git.gitbook.com/hemantajax/css-flexbox.git (push)

// if ssh
origin  https://git.gitbook.com/hemantajax/css-flexbox.git (fetch)
origin  https://git.gitbook.com/hemantajax/css-flexbox.git (push)

// To change mode of communication https -> ssh
git remote set-url origin [e-mail]:hs950559/bootstrap4-snippet.git 
( copied '[e-mail]:hs950559/bootstrap4-snippet.git' from github)

// To change mode of communication ssh -> https
git remote set-url origin https://github.com/hs950559/bootstrap4-snippet.git 
( copied 'https://github.com/hs950559/bootstrap4-snippet.git' from github)

Adding github to local repository

git remote add origin https://github.com/hs950559/git-step-by-step.git
// OR
git remote add origin [e-mail]:hs950559/git-step-by-step.git

OR start with fresh git clone

git clone https://github.com/hs950559/git-step-by-step.git