Update README.md

README.md

@@ -75,7 +75,7 @@ For Linux (x64) environment, you can install Python binary package of SentencePi
 % pip install sentencepiece
 ```
 
-For more detail, [Python module](python/README.md)
+For more detail, see [Python module](python/README.md)
 
 
 ## Required packages (C++)
@@ -142,7 +142,7 @@ Use `--extra_options` flag to insert the BOS/EOS markers or reverse the input se
 % spm_encode --extra_options=reverse:bos:eos (reverse input and add <s> and </s>)
 ```
 
-SentencePiece supports nbest segmentation and segmentation sampling with `--output_format=(id|sample)_(piece|id)` flags.
+SentencePiece supports nbest segmentation and segmentation sampling with `--output_format=(nbest|sample)_(piece|id)` flags.
 ```
 % spm_encode --model=<model_file> --output_format=sample_piece --nbest_size=-1 --alpha=0.5 < input > output
 % spm_encode --model=<model_file> --output_format=nbest_id --nbest_size=10 < input > output