update readme

README.md

@@ -51,6 +51,11 @@ RESTIC
 * delete backups by rules to keep a count of hourly, daily, weekly, mothly, yearly backups
 * several backup targets (we currently use sftp:// http:// and file://)
 
+### control simoultanous backups ###
+
+As an optional feature you can control the count simultanous written backups.
+This requires additional effort next to the client installation.
+
 ## Installation ##
 
 - Uncompress / clone the client to a local directory
@@ -123,7 +128,7 @@ To make a database restore its dump must be located at this directory. To restor
 If you have local Mysql daemon or Pgsql you can test it by starting 
 
     # dump all databases
-    ./localdump.sh
+    sudo ./localdump.sh
 
     # show written files
     find /var/iml-backup