Add TODO

pygrad/tensor.py

@@ -6,8 +6,7 @@ def tensor(*args, **kwargs):
 class Tensor:
   # TODO Implement 'requires_grad' functionality.
   def __init__(self, value):
-    # NOTE We technically could support both numpy arrays and scalar values,
-    # but it is too much work.
+    # TODO Add support for scalar values.
     if not isinstance(value, np.ndarray):
       print(f"{type(value)} is not compatible with {np.ndarray}")
       exit(-1)