move order_book config out of experimental

config.json.example

@@ -11,7 +11,18 @@
         "sell": 30
     },
     "bid_strategy": {
-        "ask_last_balance": 0.0
+        "ask_last_balance": 0.0,
+        "use_order_book": false,
+        "order_book_top": 1,
+        "check_depth_of_market": {
+            "enabled": false,
+            "bids_to_ask_delta": 1
+        }
+    },
+    "ask_strategy":{
+        "use_order_book": false,
+        "order_book_min": 1,
+        "order_book_max": 9
     },
     "exchange": {
         "name": "bittrex",
@@ -37,21 +48,7 @@
     "experimental": {
         "use_sell_signal": false,
         "sell_profit_only": false,
-        "ignore_roi_if_buy_signal": false,
-        "check_depth_of_market": {
-            "enabled": false,
-            "bids_to_ask_delta": 1
-        },
-        "bid_strategy": {
-            "use_order_book": false,
-            "order_book_top": 2,
-            "percent_from_top": 0
-        },
-        "ask_strategy":{
-            "use_order_book": false,
-            "order_book_min": 1,
-            "order_book_max": 9
-        }
+        "ignore_roi_if_buy_signal": false
     },
     "telegram": {
         "enabled": true,