Updated docs for newly packaged directory structure

Signed-off-by: Jacob Torrey <jacob@thinkst.com>

README.md

@@ -30,7 +30,7 @@ Here are each of them compared with both the LZMA and zlib detector across the t
 
 ZipPy will read files passed as command-line arguments, or will read from stdin to allow for piping of text to it. 
 ```
-$ python3 zippy.py -h
+$ python3 zippy/zippy.py -h
 usage: zippy.py [-h] [-p P] [-e {zlib,lzma,brotli,ensemble}] [-s | sample_files ...]
 
 positional arguments:
@@ -42,7 +42,7 @@ options:
   -e {zlib,lzma,brotli,ensemble}
                         Which compression engine to use: lzma, zlib, brotli, or an ensemble of all engines
   -s                    Read from stdin until EOF is reached instead of from a file
-$ python3 zippy.py samples/human-generated/about_me.txt 
+$ python3 zippy/zippy.py samples/human-generated/about_me.txt 
 samples/human-generated/about_me.txt
 ('Human', 0.06013429262166636)
 ```