Changed to GroupBy (#59699)

* Changed to GroupBy

* Update pandas/core/groupby/groupby.py

Co-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>

* Update pandas/core/groupby/groupby.py

Co-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>

---------

Co-authored-by: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>

Author: doshi-kevin

pandas/core/groupby/groupby.py

@@ -414,9 +414,9 @@ class providing the base-class of operations.
 
 See Also
 --------
-{klass}.groupby.apply : Apply function func group-wise
+{klass}GroupBy.apply : Apply function func group-wise
     and combine the results together.
-{klass}.groupby.transform : Transforms the Series on each group
+{klass}GroupBy.transform : Transforms the Series on each group
     based on the given function.
 {klass}.aggregate : Aggregate using one or more operations.