Fix Configuring Learning Rate Schedulers (#1177)

* Update docs so users know the desired manner of configuring learning rate schedulers.

* update list

* as note

Co-authored-by: Jirka Borovec <Borda@users.noreply.github.com>

docs/source/optimizers.rst

@@ -19,6 +19,20 @@ Every optimizer you use can be paired with any `LearningRateScheduler <https://p
    def configure_optimizers(self):
       return [Adam(...), SGD(...)], [ReduceLROnPlateau(), LambdaLR()]
 
+   # Same as above with additional params passed to the first scheduler
+   def configure_optimizers(self):
+      optimizers = [Adam(...), SGD(...)]
+      schedulers = [
+         {
+            'scheduler': ReduceLROnPlateau(mode='max', patience=7),
+            'monitor': 'val_recall', # Default: val_loss
+            'interval': 'epoch',
+            'frequency': 1
+         },
+         LambdaLR()
+      ]
+      return optimizers, schedulers
+
 
 Use multiple optimizers (like GANs)
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