small change to module02-ch003-neutron-use-cases

removed such

Change-Id: I976348bf28c5161fa8bb339f4ecc92ab3d663cfa
small cleanup to module001-ch003-core-projects

removed extra ] bracket

Change-Id: Id3fc07a01a7598a41c04e190c8a9b6a48d131677
Merge "small cleanup to module001-ch003-core-projects"
Merge "small change to module02-ch003-neutron-use-cases"