Fix readme error with pip install.

Add makefile, too.

Error was:

```
Downloading/unpacking pyjoat
  Downloading PyJOAT-1.0.0.tar.gz
  Running setup.py egg_info for package pyjoat
    Traceback (most recent call last):
      File "<string>", line 16, in <module>
      File "/Users/kevin/.virtualenvs/loudrapi/build/pyjoat/setup.py", line 7, in <module>
        with open(path.join(here, 'README.md'), encoding='utf-8') as f:
      File "/Users/kevin/.virtualenvs/loudrapi/lib/python2.7/codecs.py", line 881, in open
        file = __builtin__.open(filename, mode, buffering)
    IOError: [Errno 2] No such file or directory: '/Users/kevin/.virtualenvs/loudrapi/build/pyjoat/README.md'
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 16, in <module>

  File "/Users/kevin/.virtualenvs/loudrapi/build/pyjoat/setup.py", line 7, in <module>

    with open(path.join(here, 'README.md'), encoding='utf-8') as f:

  File "/Users/kevin/.virtualenvs/loudrapi/lib/python2.7/codecs.py", line 881, in open

    file = __builtin__.open(filename, mode, buffering)

IOError: [Errno 2] No such file or directory: '/Users/kevin/.virtualenvs/loudrapi/build/pyjoat/README.md'
```