README confusion: git clone of meta-iotedge

[gordonleonard]

Describe the bug

In the readme, at the top, the git commands to get either scarthgap or kirkstone branches are the same. Should kirkstone not point to the specific branch?

_Use the branch of meta-iotedge corresponding to your Yocto release:

Active and maintained:

Scarthgap - git clone -b main https://github.com/Azure/meta-iotedge.git
Kirkstone - git clone -b main https://github.com/Azure/meta-iotedge.git_