fix typos

freqtrade/freqai/data_drawer.py

@@ -377,7 +377,7 @@ class FreqaiDataDrawer:
         if self.config.get("freqai", {}).get("purge_old_models", False):
             self.purge_old_models()
 
-    def save_metaddata(self, dk: FreqaiDataKitchen) -> None:
+    def save_metadata(self, dk: FreqaiDataKitchen) -> None:
         """
         Saves only metadata for backtesting studies if user prefers
         not to save model data. This saves tremendous amounts of space

freqtrade/freqai/freqai_interface.py

@@ -292,7 +292,7 @@ class IFreqaiModel(ABC):
                         self.dd.save_data(self.model, pair, dk)
                     else:
                         logger.info('Saving metadata to disk.')
-                        self.dd.save_metaddata(dk)
+                        self.dd.save_metadata(dk)
                 else:
                     self.model = self.dd.load_data(pair, dk)