update README

README.md

 Storage monitor
 ===============
 
-This script generates several tables. One per each combination of T0, T1, T2, T3 and DATADISK, PRODDISK, SCRATCHDISK (and TZDISK for T0).
+This script generates several tables and plots, grouped by various combinations, eg T0, T1, T2, T3 and DATADISK, PRODDISK, SCRATCHDISK.
+
+The tables are available at http://adc-ddm-mon.cern.ch/ddmusr01/
+
+To fix strange values in the plots use the fix-rrd-fluctuations.py script. See the instructions inside to adjust the script according to the particular problem site, value, time etc.
 
-The tables are available at adc-ddm-mon.cern.ch:
-- http://adc-ddm-mon.cern.ch/ddmusr01/T1_DATADISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T2_DATADISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T3_DATADISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T0_SCRATCHDISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T1_SCRATCHDISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T2_SCRATCHDISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T3_SCRATCHDISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T1_PRODDISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T2_PRODDISK.html
-- http://adc-ddm-mon.cern.ch/ddmusr01/T3_PRODDISK.html