sysfstools package is named incorrectly

systools is actually contained in the package sysfsutils.
It is named incorrectly in the document.

Change-Id: I840ed6b2477634dbf7868e3d536ee0b6cdda98f1
Closes-Bug: #1284987
cleanup of module001-ch003-core-projects

changed to to that
provide changed to plural
added comma after among
removed run on sentence
it changed to They
removed extra spaces

Change-Id: I5256c06b7384df55df38ae90d01cd59f78bae5ec
Merge "cleanup of module001-ch003-core-projects"
Merge "sysfstools package is named incorrectly"