Issue #1831798 by darol100, pjonckiere, rhuffstedtler, ifrik, paul.linney, rajneeshb, batigolix, jhodgdon: Update hook_help() for config manager module

Issue #2115737 by darol100, rhuffstedtler, andythomnz, jemandy, ijf8090, zealfire, er.pushpinderrana, jhodgdon: Make the text in modules, themes, and profiles README.txt files more user-friendly