Fixed SA04 errors in docstrings (pandas-dev pandas-dev#28792)

Author: suparnasnair

pandas/core/indexes/range.py

@@ -335,7 +335,7 @@ def memory_usage(self, deep=False):
 
         See Also
         --------
-        numpy.ndarray.nbytes
+        numpy.ndarray.nbytes : Total bytes consumed by the elements of the array.
         """
         return self.nbytes
 
@@ -458,7 +458,7 @@ def argsort(self, *args, **kwargs):
 
         See Also
         --------
-        numpy.ndarray.argsort
+        numpy.ndarray.argsort : Returns the indices that would sort this array.
         """
         nv.validate_argsort(args, kwargs)