Update hyperopt param docs to be clear that non-conclusive parameters will be ignored

docs/hyperopt.md

@@ -271,7 +271,8 @@ The last one we call `trigger` and use it to decide which buy trigger we want to
 
 !!! Note "Parameter space assignment"
     Parameters must either be assigned to a variable named `buy_*` or `sell_*` - or contain `space='buy'` | `space='sell'` to be assigned to a space correctly.
-    If no parameter is available for a space, you'll receive the error that no space was found when running hyperopt.
+    If no parameter is available for a space, you'll receive the error that no space was found when running hyperopt.  
+    Parameters with unclear space (e.g. `adx_period = IntParameter(4, 24, default=14)` - no explicit nor implicit space) will not be detected and will therefore be ignored.
 
 So let's write the buy strategy using these values:
 

freqtrade/strategy/hyper.py

@@ -191,6 +191,7 @@ def detect_parameters(
                         and attr.category is not None and attr.category != category):
                     raise OperationalException(
                         f'Inconclusive parameter name {attr_name}, category: {attr.category}.')
+
                 if (category == attr.category or
                         (attr_name.startswith(category + '_') and attr.category is None)):
                     yield attr_name, attr