add barycenters to Readme.md

Author: Nicolas Courty

README.md

@@ -16,7 +16,7 @@ It provides the following solvers:
 * Conditional gradient [6] and Generalized conditional gradient for regularized OT [7].
 * Joint OT matrix and mapping estimation [8].
 * Wasserstein Discriminant Analysis [11] (requires autograd + pymanopt).
-* Gromov-Wasserstein distances [12]
+* Gromov-Wasserstein distances and barycenters [12]
 
 Some demonstrations (both in Python and Jupyter Notebook format) are available in the examples folder.