updated README.md

README.md

 # As if by magic: self-supervised training of deep despeckling networks with MERLIN
-The Git repository will be soon updated with more results and the weights of the trained models
+Two documents with additional results on TerraSAR-X images in stripmap mode and in spotlight mode
+are provided in the *Additional_results* folder.
+
+The Git repository **will be soon updated** with the weights of the trained models and
+a notebook allowing to easily do some tests on custom images.