documentation for hardlinked repositories

DISKBASE.md

@@ -18,8 +18,9 @@ As a result it will print out the values needed for `docker_mirror.ini`.
 
 Note that you can not directly mount the sync-dirs. They are broken into multiple
 pieces ('base' and 'update' repos) and their metadata index is often broken. This
-is fixed when copying the data into the container -or- when the '.disk' directory
-is created. The rpm/deb files themselves are hardlinked into the '.disk' directory.
+is fixed when copying the data into the repo-image container -or- when the '.disk' 
+directory  is created. The rpm/deb files themselves are hardlinked into the '.disk' 
+directory, so they do not consume extra space.
 
 ## docker_mirror.ini