Update README.md

README.md

@@ -36,7 +36,7 @@ For each geopgraphic area, we provide '.csv' files with predefined train, test a
 
 ## Temporal Coverage
 
-As of now, M3LEO contains data from 2018 to 2020 for SAR and optical imagery and 2020 for the case of the labelled datasets. Future iterations might extend the dataset to other years.
+As of now, M3LEO contains data from 2018 - 2020 for SAR amplitude and multi-spectral Sentinel-2 imagery. Other datasets are provided for 2020 only. Future iterations might extend the dataset to other years.
 
 ## Datasets