Update OffStreetParking_C2.3.json

examples/OffStreetParking_C2.3.json

@@ -31,6 +31,6 @@
 	},
 	"@context": [
 	    "http://example.org/ngsi-ld/parking.jsonld",
-		"http://uri.etsi.org/ngsi-ld/v1/ngsi-ld-core-context.jsonld"
+	    "https://uri.etsi.org/ngsi-ld/v1/ngsi-ld-core-context.jsonld"
 	]
 }