docs: improve static pairlist documentation

Author: xmatthias

docs/includes/pairlists.md

@@ -44,9 +44,24 @@ You may also use something like `.*DOWN/BTC` or `.*UP/BTC` to exclude leveraged
 
 By default, the `StaticPairList` method is used, which uses a statically defined pair whitelist from the configuration. The pairlist also supports wildcards (in regex-style) - so `.*/BTC` will include all pairs with BTC as a stake.
 
-It uses configuration from `exchange.pair_whitelist` and `exchange.pair_blacklist`.
+It uses configuration from `exchange.pair_whitelist` and `exchange.pair_blacklist`, which in the below example, will trade BTC/USDT and ETH/USDT - and will prevent BNB/USDT trading.
+
+Both `pair_*list` parameters support regex - so values like  `.*/USDT` would enable trading all pairs that are not in the blacklist.
 
 ```json
+"exchange": {
+    "name": "...",
+    // ... 
+    "pair_whitelist": [
+        "BTC/USDT",
+        "ETH/USDT",
+        // ...
+    ],
+    "pair_blacklist": [
+        "BNB/USDT",
+        // ...
+    ]
+},
 "pairlists": [
     {"method": "StaticPairList"}
 ],