change submodules to https

Signed-off-by: Itai Koren <itkoren@gmail.com>
Exercise Solution Initial Commit

Signed-off-by: Itai Koren <itkoren@gmail.com>
make method async

Signed-off-by: Itai Koren <itkoren@gmail.com>
Merge branch 'solution' of github.com:itkoren/Lets-Node-ex-1 into solution