Revert "Moved rdme back"

This reverts commit c4382af64b5a7d3044a540b051331b6a7198f8b9.
Revert "Revert "Moved rdme back""

This reverts commit 50813fb9d187354a2091809c8d6a1d92f8d9f5a1.
added showHelp() to stack.cpp
Merge branch 'master' of https://github.com/thelastdolphin/base-algo