message: Updated custom_operators.md
  Typo error fixed
diff: @@ -141,7 +141,7 @@ When `tflite_convert` converts a TensorFlow graph into TFLite format, it makes
  some assumption about custom operations that might be not correct. In this case,
  the generated graph may not execute.
  -It is possible to add aditional information about your custom op output to TF
  +It is possible to add additional information about your custom op output to TF
  graph before it is converted. The following attributes are supported:
  - **_output_quantized** a boolean attribute, true if the operation outputs are
  