Edit readme.md

Water quality calibration/readme.md

+# water quality optimization srcipts in MIKE+
+contains all scripts to start a water quality optimization  
+All files and notebooks are given with example string values which need to be changed to the actual model, sensor data, etc.
+If you just want to try the optimization once without the model you can use the dummy folder in which example data is given for 
+all excel fiels defined below. The script there ignores the model itself and just shows how the optimization works.
+
+
 # the follwing scripts can be found here:
 
 check_column_names_res1d.ipnyb:
@@ -15,7 +22,6 @@ water-quality-optimization:
 - script that contains the automatic optimization of the MIKE+ model
 
 
-
 # The following excel files need to be saved in the folder where the .sqlite file is saved:
 
 calibration_event_times.xlsx