diff --git a/Water quality calibration/readme.md b/Water quality calibration/readme.md
index e57f8e64b912c429767aa8ad5fa18c25f4357b1a..07bd19d2fe7c8e58f32906f0692988a2fe266acf 100644
--- a/Water quality calibration/readme.md	
+++ b/Water quality calibration/readme.md	
@@ -1 +1,14 @@
 Explanations:
+
+event_dict.xlsx:
+- this excel file contains information if multiple events are simulated together
+- if you are doing this: Simplay write under event the single events and under result file the result file name in which the event is included
+
+parameter config.xlsx:
+- this table contains the parameters that should be calibrated and also the min and amx values for the calibration
+- as there might be some unit difference between the python input and that in MIKE+ itself, unitfactors are given for the parameters, which were investigated here. All further parametern need to be looked up
+- to use it directly just fill out columns D, J and K
+- the second sheet "sqlite_table_names" contains all names to look for the the MUID to access the parameters
+
+
+