Fix param name in `GradientDescentTrainer` doc
@@ -186,7 +186,7 @@ class GradientDescentTrainer(Trainer):
must be prepended with either "+" or "-", which specifies whether the metric
is an increasing or decreasing function.
- validation_dataloader : `DataLoader`, optional (default=None)
+ validation_data_loader : `DataLoader`, optional (default=None)
A `DataLoader` to use for the validation set. If `None`, then
use the training `DataLoader` with the validation data.
