Update map_ratings_list.json

Author: ageekhere

map_ratings/map_ratings_list.json

@@ -5,6 +5,24 @@
     "is_stable": "y",
     "multiplayer": "y"
   },
+  "Africa_Challenge_v1": {
+    "Map Name": "Africa Challenge",
+    "url": "6",
+    "is_stable": "n",
+    "multiplayer": "y"
+  },
+  "4_Rivers_Conversion_v1_00": {
+    "Map Name": "4 Rivers Conversion",
+    "url": "9",
+    "is_stable": "y",
+    "multiplayer": "y"
+  },
+  "A_Tycoon's_Tale_v1_00": {
+    "Map Name": "A Tycoon's Tale",
+    "url": "10",
+    "is_stable": "y",
+    "multiplayer": "y"
+  },
   "blank": {
     "Map Name": "",
     "url": "",