Update readme, add badges

README.rst

@@ -2,22 +2,29 @@
 merra
 =====
 
+.. image:: https://travis-ci.org/TUW-GEO/merra.svg?branch=master
+    :target: https://travis-ci.org/TUW-GEO/merra
+
+.. image:: https://coveralls.io/repos/github/TUW-GEO/merra/badge.svg?branch=master
+   :target: https://coveralls.io/github/TUW-GEO/merra?branch=master
+
+.. image:: https://readthedocs.org/projects/merra/badge/?version=latest
+   :target: http://merra.readthedocs.org/en/latest/?badge=latest
 
 The package provides readers and converters for the MERRA2 data in a similiar
 manner like the gldas package.
 
-
 Description
 ===========
 
 So far the 1-hourly and monthly data sets are supported. The structure of the
 package is as follows:
-    *grid.py : implements the asymmetrical GMAO 0.5 x 0.625 grid
-    *interface.py : classes for reading a single image, image stacks and time series
-    *reshuffle.py : provides a command line utility for reshuffling an image stack to time series format
-    *download.py : command line utility for downloading merra2 data from the nasa datapool
-    *reshuffling_process.py : WILL BE REMOVED
 
+* grid.py : implements the asymmetrical GMAO 0.5 x 0.625 grid
+* interface.py : classes for reading a single image, image stacks and time series
+* reshuffle.py : provides a command line utility for reshuffling an image stack to time series format
+* download.py : command line utility for downloading merra2 data from the nasa datapool
+* reshuffling_process.py : WILL BE REMOVED
 
 Note
 ====