Update MC/config/PWGHF/pythia8/generator/pythia8_charmhadronic_with_decays_Mode2_CorrBkg.cfg

Co-authored-by: Mattia Faggin <mattia.faggin@cern.ch>

Author: stefanopolitano

MC/config/PWGHF/pythia8/generator/pythia8_charmhadronic_with_decays_Mode2_CorrBkg.cfg

@@ -213,7 +213,7 @@ BeamRemnants:saturation 5
 ### Ds -> rho0 K+
 431:onIfMatch = 113 321
 ### Ds -> K π π
-431:onIfMatch =  211 321 211
+431:onIfMatch =  321 211 211
 ### Ds -> eta π+
 431:onIfMatch = 221 211