Update index.json to map to PeakDemandWithCF-BV

The correct peak demand file for Best View is the one with some price driven customer flexibility (ToUT) assumed.

2023-DFES/data/scenarios/index.json

@@ -99,7 +99,7 @@
 			"ev": { "dataBy": "primary", "file": "primaries/EV-PS.csv", "key": "Primary" },
 			"ebus": { "dataBy": "primary", "file": "primaries/Number_electric_buses-PS.csv", "key": "Primary" },
 			"ehgv": { "dataBy": "primary", "file": "primaries/Number_electric_HGVs-PS.csv", "key": "Primary" },
-			"peakdemand":{ "dataBy": "primary", "file": "primaries/PeakDemand-PS.csv", "key": "Primary" },			
+			"peakdemand":{ "dataBy": "primary", "file": "primaries/PeakDemandWithCF-BV.csv", "key": "Primary" },			
 			"peakutilisation":{ "dataBy": "primary", "file": "primaries/PeakUtilisation-PS.csv", "key": "Primary" },			
 			"totalconsumptioncf":{ "dataBy": "primary", "file": "primaries/TotalConsumptionWithLCTs_mWh-BV.csv", "key": "Primary" },
 			"windcapacity":{ "dataBy": "primary", "file": "primaries/WindCapacity-PS_withDirects.csv", "key": "Primary" },