Update README.md

Author: loic-vial

README.md

@@ -72,8 +72,8 @@ Optional arguments:
 
 - `--lowercase [true|false]` (default `false`) if you want to enable/disable lowercasing of input
 - `--batch_size [n]` (default `1`) is the batch size.
-- `--sense_compression_hypernyms [true|false]` (default `true`) if you want to enable/disable the sense vocabulary compression through the hypernym/hyponym relationships.
-- `--sense_compression_file [FILE]` if you want to use another sense vocabulary compression mapping.
+- `--sense_compression_hypernyms [true|false]` (default `true`) must be `true` if the model was trained using the sense vocabulary compression through the hypernym/hyponym relationships, or `false` otherwise.
+- `--sense_compression_file [FILE]` must indicate the path of the sense mapping file used for training the model if any, and if different from the hypernyms mapping.
 
 UFSAC corpora are available in the [UFSAC repository](https://github.com/getalp/UFSAC). If you want to reproduce our results, please download UFSAC 2.1 and you will find the SemCor (file `semcor.xml`, the WordNet Gloss Tagged (file `wngt.xml`) and all the SemEval/SensEval evaluation corpora that we used (files `raganato_*.xml`).