update pv model numbers

Author: davmoz

docs/developer/data-models.md

@@ -199,8 +199,8 @@ Photovoltaic system data with solar generation metrics:
   "type": "pv",
   "make": "Deye",
   "W": -1500,
-  "lower_limit_W": -3000,
-  "upper_limit_W": 0,
+  "lower_limit_W": -1500,
+  "upper_limit_W": -1500,
   "rated_power_W": 3000,
   "mppt1_V": 400,
   "mppt1_A": -3.75,