restored the previous docstring

Author: jewettaijfc

tidy3d/components/validators.py

@@ -227,7 +227,7 @@ def assert_objects_contained_in_sim_bounds(
     strict_inequality: bool = False,
     strict_for_zero_size_dim: bool = False,
 ):
-    """check that each structure is completely contained within simulation bounds."""
+    """Makes sure all objects in field are completely inside the simulation bounds."""
 
     @pydantic.validator(field_name, allow_reuse=True, always=True)
     @skip_if_fields_missing(["center", "size"])