doc(V05_sd_model): using simulated warm-up period

Refs #123

vignettes/V05_sd_model.Rmd

@@ -124,10 +124,13 @@ OutputsCalibDown1 <- Calibration_Michel(InputsModel = InputsModelDown1,
                                         FUN_MOD = RunModel_GR4J)
 ```
 
-To run the complete model, we should substitute the observed upstream flow by the simulated one:
+To run the complete model, we should substitute the observed upstream flow by the simulated one for the entire period of simulation (warm-up + run):
 
 ```{r}
 InputsModelDown2 <- InputsModelDown1
+# Simulated flow during warm-up period 
+InputsModelDown2$Qupstream[Ind_Run[seq_len(365)] - 365] <- OutputsModelUp$WarmUpQsim
+# Simulated flow during run period
 InputsModelDown2$Qupstream[Ind_Run] <- OutputsModelUp$Qsim
 ```