Update README.rst

Author: ddomingof

README.rst

@@ -1,10 +1,7 @@
 DiffuPy |build| |docs| |coverage|
 =================================
 
-DiffuPy is a generalizable Python implementation of the null diffusion algorithm for metabolomics data described by [1].
-The package enables running the algorithm in heterogenous networks by abstracting
-`NetworkX <http://networkx.github.io/>`_ classes.
-
+DiffuPy is a generalizable Python implementation of the numerous label propagation algorithms inspired by the `diffuStats <https://github.com/b2slab/diffuStats>`_ R package [1]_.
 
 Installation
 ------------
@@ -34,9 +31,8 @@ Generates the kernel of a given graph.
     $ python3 -m diffupy kernel
 
 
-Citation
---------
-If you use diffuPy in your work, please cite the R implementation of the null diffusion algorithm [1]_ (more info in `diffuStats <https://github.com/b2slab/diffuStats>`_):
+References
+----------
 
 .. [1] Picart-Armada, S., *et al.* (2017). `Null diffusion-based enrichment for metabolomics data <https://doi.org/10.1371/journal.pone.0189012>`_. *PloS one* 12.12.