chore: improve description formatting

Author: xmatthias

freqtrade/config_schema/config_schema.py

@@ -296,8 +296,8 @@
             "description": (
                 "The class name of the hyperopt loss function class (IHyperOptLoss). "
                 "Different functions can generate completely different results, "
-                "since the target for optimization is different. Built-in Hyperopt-loss-functions are: "
-                f"{', '.join(HYPEROPT_LOSS_BUILTIN)}"
+                "since the target for optimization is different. "
+                f"Built-in Hyperopt-loss-functions are: {', '.join(HYPEROPT_LOSS_BUILTIN)}"
             ),
             "type": "string",
         },