Added contents to Git CLI Basics with exercices.

git-remote/exercises.md

+# Working with remote repositories - Exercices
+
+# Cloning a repository with HTTPS
+
+In a folder on your workstation, clone your GitLab project repository using the HTTPS protocol.
+
+The rename the folder (ex. : prefix the folder name with `https-`)
+
+# Cloning a repository with SSH
+
+- Generate an SSH key pair on your workstation.
+- Copy your public key in your GitLab account settings.
+- Check that you have a working setup using [this tutorial](https://docs.gitlab.com/ee/user/ssh.html#verify-that-you-can-connect)
+- Clone your project's repository using the SSH protocol.
+
+
+