bugfix: typo
add macosx support
update makefile
update Makefile
Merge pull request #1 from kevin1sMe/master

update makefile for macosx
fix typo
add readme and license
Improved the language.

I tried to correct some obvious grammar flaws and inconsistencies.
Minor update.
Minor update.
Merge pull request #4 from elgs/master

Improved the language.
Merge pull request #1 from cloudwu/master