DOC: update markdown

README.md

@@ -80,7 +80,7 @@ To add the application in QGIS, just copy the file "_TimeSeriesIndexTrend.xml_"
 This application computes the landscape fragmentation from an time series index (e.g. NDVI).
 The implemented pipeline is described in [Bellón et al](http://dx.doi.org/10.3390/rs9060600).
 
-![Pipeline](otbLandscapeFragmentation.png)
+![Pipeline](otbLandscapeStratification.png)
 
 
 ### How to use it