Updated the README.md of the core sibyl file to reflect that the actual raw...

Updated the README.md of the core sibyl file to reflect that the actual raw data is not included in the repro.

analyze/sibyl/libSibyl/README.md

@@ -54,8 +54,10 @@ We would also like to note, that DOMINATOR.sh is aware of this and will use the
 
 
 ### HDF5
-This folder contains the actual HDF5 files that are used.
-It contains an ignore file that will ignore anything in the folder.
+This folder should contain all hdf5 files. However if you get the folder, it will be
+empty, because the actual data needs several terabit  of storage, so it is not included.
+However all notebooks assumes that the data is there. It contains a .gitignore file, that
+ignores everything inside it.
 There are script to create snymlinks in that folder to place files in it.
 
 ### LIBSIBYL