Add low_price_percent_filter

docs/configuration.md

@@ -426,6 +426,8 @@ section of the configuration.
   * By default, low-value coins that would not allow setting a stop loss are filtered out. (set `precision_filter` parameter to `false` to disable this behaviour).
   * `VolumePairList` does not consider `pair_whitelist`, but builds this automatically based the pairlist configuration.
   * Pairs in `pair_blacklist` are not considered for VolumePairList, even if all other filters would match.
+  * `low_price_percent_filter` allows filtering of pairs where a raise of 1 price unit is below the `low_price_percent_filter` ratio.
+    Calculation example: Min price precision is 8 decimals. If price is 0.00000011 - one step would be 0.00000012 - which is almost 10% higher than the previous value.
 
 Example:
 
@@ -439,7 +441,8 @@ Example:
         "config": {
             "number_assets": 20,
             "sort_key": "quoteVolume",
-            "precision_filter": true
+            "precision_filter": true,
+            "low_price_percent_filter": 0.03
         }
     },
 ```