First release

README.md

@@ -58,6 +58,12 @@ The current release of the proton response files is based on:
   * WFI: 1.5 - 12 keV
   * X-IFU: 1.5 - 7 keV (the limited upper energy threshold is due to the lower statistics achieved in the X-IFU Geant4 simulations because of the intrinsic lower soft proton induced background flux)
 
+* The WFI response files are available with two optical filter configurations: 
+  * noOBF: only on-chip optical filter
+  * OBF: optical filter on the filter wheel present
+
+ 
+  
 <!-- LICENSE -->
 ## License