adding extra documentation

README.md

@@ -72,8 +72,7 @@ atdb_inspect_transition -h
 
 
 ## ldv-migrate script
-This is a quick script that is probably used only once to migrate the data from the 
-old `ldvadmin` database to the new `ldv-spec-db` database.
+This is a script to migrate the data from the old `ldvadmin` database to the new `ldv-spec-db` database.
 
 ### Deploying (manually)
 For example on `sdc@dop814.astron.nl` (this is our sdc-dev test machine)