Update composer/loggers/wandb_logger.py

Co-authored-by: Mihir Patel <mihir.v.patel7@gmail.com>

composer/loggers/wandb_logger.py

@@ -44,7 +44,7 @@ class WandBLogger(LoggerDestination):
         rank_zero_only (bool, optional): Whether to log only on the rank-zero process.
             When logging `artifacts <https://docs.wandb.ai/ref/python/artifact>`_, it is
             highly recommended to log on all ranks.  Artifacts from ranks ≥1 will not be
-            stored, which may discard pertinent information.
+            stored, which may discard pertinent information (default: ``True``).
         init_kwargs (dict[str, Any], optional): Any additional init kwargs
             ``wandb.init`` (see
             `WandB documentation <https://docs.wandb.ai/ref/python/init>`_).