Apply suggestions from code review

Co-authored-by: Carlos Mocholí <[email protected]>

Author: Borda

pytorch_lightning/metrics/regression/r2score.py

@@ -32,8 +32,8 @@ def __init__(
         dist_sync_fn: Callable = None,
     ):
         """
-        This implementation refers to :class:`~torchmetrics.Accuracy`.
+        This implementation refers to :class:`~torchmetrics.R2Score`.
 
         .. deprecated::
-            Use :class:`~torchmetrics.Accuracy`. Will be removed in v1.5.0.
+            Use :class:`~torchmetrics.R2Score`. Will be removed in v1.5.0.
         """

pytorch_lightning/metrics/regression/ssim.py

@@ -34,8 +34,8 @@ def __init__(
         process_group: Optional[Any] = None,
     ):
         """
-        This implementation refers to :class:`~torchmetrics.Accuracy`.
+        This implementation refers to :class:`~torchmetrics.SSIM`.
 
         .. deprecated::
-            Use :class:`~torchmetrics.Accuracy`. Will be removed in v1.5.0.
+            Use :class:`~torchmetrics.SSIM`. Will be removed in v1.5.0.
         """