better structure and more comments for simple cmakelists.txt example
better structure and more comments for simple cmakelists.txt example

asmodehn/catkin,harmishhk/catkin,wkentaro/catkin,meyerj/catkin,jack-oquin/catkin,thaddeustaylor/catkin,ros/catkin,ros/catkin,wkentaro/catkin,scpeters/catkin,shyamalschandra/catkin,jack-oquin/catkin,beni55/catkin,harmishhk/catkin,harmishhk/catkin,meyerj/catkin,beni55/catkin,meyerj/catkin,shyamalschandra/catkin,asmodehn/catkin,ros/catkin,scpeters/catkin,scpeters/catkin,jack-oquin/catkin,shyamalschandra/catkin,thaddeustaylor/catkin,wkentaro/catkin,beni55/catkin,asmodehn/catkin,thaddeustaylor/catkin