"New files, such as source files or header files, can be created to the project" -> "New files, such as source files or header files, can be added to the project"

"Navigate to Project > C/C++ Build under the Builder Settings tab in order for the managed make project generate a Makefile which can be distributed with the project.  Otherwise, import the project into Eclipse and use the CDT to perform the build." -> "Navigate to Project > C/C++ Build under the Builder Settings tab in order for the managed make project to generate a Makefile which can be distributed with the project.  This facilities use of the Makefile outside Eclipse."