Update README.rst

Author: ddomingof

README.rst

@@ -33,9 +33,12 @@ Generates the kernel of a given graph.
 
 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.
 
+Disclaimer
+----------
+DiffuPy is a scientific software that has been developed in an academic capacity, and thus comes with no warranty or guarantee of maintenance, support, or back-up of data.
+
 .. |build| image:: https://travis-ci.com/multipaths/diffupy.svg?branch=master
     :target: https://travis-ci.com/multipaths/diffupy
     :alt: Build Status