fix utils and trainer doc

Author: GiovanniCanali

pina/trainer.py

@@ -58,9 +58,9 @@ def __init__(
             Default is ``True``.
 
         :Keyword Arguments:
-            The additional keyword arguments specify the training setup
-            and can be choosen from the `pytorch-lightning
-            Trainer API <https://lightning.ai/docs/pytorch/stable/common/trainer.html#trainer-class-api>`_
+            Additional keyword arguments that specify the training setup.
+            These can be selected from the pytorch-lightning Trainer API
+            <https://lightning.ai/docs/pytorch/stable/common/trainer.html#trainer-class-api>_.
         """
         # check consistency for init types
         self._check_input_consistency(