Update enrich_simbench_grid.ipynb

Resolves #441 ipynb fixing minor error

Author: kkarthik11

nbs/enrich_simbench_grid.ipynb

@@ -414,8 +414,8 @@
         "    ev_params[4].append(ev_s_rated)  # AC\n",
         "    ev_params[5].append(ev_s_rated)  # DC\n",
         "    ev_params[6].append(ev_cosphi_rated)\n",
-        "    ev_params[6].append(120.0)\n",
-        "    ev_params[7].append(0.18)\n",
+        "    ev_params[7].append(120.0)\n",
+        "    ev_params[8].append(0.18)\n",
         "\n",
         "    evcs_params[0].append(evcs_id)\n",
         "    evcs_params[1].append(evcs_uuid)\n",
@@ -808,4 +808,4 @@
   },
   "nbformat": 4,
   "nbformat_minor": 5
-}
+}