Update Readme with dataset information

README.md

@@ -11,6 +11,11 @@ pretty_name: electron microscopy patch image
 size_categories:
 - 10K<n<100K
 ---
+The dataset:
 
-Actual dataset link https://www.epfl.ch/labs/cvlab/data/data-em/
-License applied to actual dataset will be applied to this dataset also
+- Is a patch from the existing dataset available at https://www.epfl.ch/labs/cvlab/data/data-em/.
+- Contains patches of size (256, 256).
+- Removes any patches with empty masks to ensure quality.
+- Has the same license applied as the original dataset.
+- Please refer to the license for information on allowed usage.
+- If you have any questions or concerns about the dataset, please do not hesitate to contact me.