[docs] update logger documentation (#482)

This pull request includes updates to the `docs/examples/config.rst`
file to enhance the documentation for the `Trainer` configuration. The
most important changes involve expanding the support for various logging
platforms.

Documentation updates:

*
[`docs/examples/config.rst`](diffhunk://#diff-f051f6df5187cb4805be686b3d10c480877a01e9a35ed98cd63cf8da6af03772L352-R354):
Updated the descriptions for `trainer.project_name`,
`trainer.experiment_name`, and `trainer.logger` to include support for
additional logging platforms such as swanlab, mlflow, and tensorboard.

docs/examples/config.rst

@@ -349,9 +349,9 @@ Trainer
      default_local_dir: checkpoints/${trainer.project_name}/${trainer.experiment_name} # local checkpoint path
 
 - ``trainer.total_epochs``: Number of epochs in training.
-- ``trainer.project_name``: For wandb
-- ``trainer.experiment_name``: For wandb
-- ``trainer.logger``: Support console and wandb
+- ``trainer.project_name``: For wandb, swanlab
+- ``trainer.experiment_name``: For wandb, swanlab
+- ``trainer.logger``: Support console and wandb, swanlab, mlflow, tensorboard
 - ``trainer.nnodes``: Number of nodes used in the training.
 - ``trainer.n_gpus_per_node``: Number of GPUs per node.
 - ``trainer.save_freq``: The frequency (by iteration) to save checkpoint