Updated README

README.md

@@ -1,25 +1,35 @@
-# clisops
-
+# clisops - climate simulation operations
 
 [![Pypi](https://img.shields.io/pypi/v/clisops.svg)](https://pypi.python.org/pypi/clisops)
 
 [![Travis](https://img.shields.io/travis/ellesmith88/clisops.svg)](https://travis-ci.org/ellesmith88/clisops)
 
 [![Documentation](https://readthedocs.org/projects/clisops/badge/?version=latest)](https://clisops.readthedocs.io/en/latest/?badge=latest)
 
+The `clisops` package (pronounced "clie-sops") provides a python library for running 
+_data-reduction_ operations on [Xarray](http://xarray.pydata.org/) data sets or files 
+that can be interpreted by Xarray. These basic operations (subsetting, averaging and 
+regridding) are likely to work where data structures are NetCDF-centric, such as those 
+found in ESGF data sets.
 
+`clisops` is employed by the [daops](https://github.com/roocs/daops) library to perform 
+its basic operations once `daops` has applied any necessary _fixes_ to data in order 
+to remove irregularities/anomalies. Users are recommended to investigate using `daops` 
+directly in order to access these _fixes_ which may affect the scientific credibility of 
+the results. 
 
-
-A short description goes here
-
+`clisops` can be used stand-alone to read individual, or groups of, NetCDF files directly.
 
 * Free software: BSD
 * Documentation: https://clisops.readthedocs.io.
 
 
 ## Features
 
-* TODO
+The package provides the following operations:
+ * subset
+ * average
+ * regrid
 
 # Credits