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README.md

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 xphyle is a small python (3.3+) library that makes it easy to open compressed
-files for the highest-possible performance available on your system. Most importantly, xphyle will compress/uncompress files if the appropriate program is available on your system; this is almost always faster than using the corresponding python libraries. xphyle also provides methods that simplify common file I/O operations.
+files. Most importantly, xphyle will use the appropriate program (e.g. 'gzip') to compress/uncompress a file if it is available on your system; this is almost always faster than using the corresponding python library. xphyle also provides methods that simplify common file I/O operations.
 
 # Installation