Update README.md

@@ -63,12 +63,5 @@ Default usage:
 python scripts/predict.py --featurer=${path_IRSOM}/bin/featurer --file=fasta_file.fasta --model=${path_IRSOM}/model/species/ --output=output_dir_of_result
 ```
 
-The rejection option can be use with the parameter --rejection.
-For example, to predict with a rejection treshold of 0.8, we run the command:
-
-``` bash
-python scripts/predict.py --featurer=${path_IRSOM}/bin/featurer --file=fasta_file.fasta --model=${path_IRSOM}/model/species/ --output=output_dir_of_result --rejection=0.8
-```
-
 As for the train script, the features are removed by default.
 To keep them, use the parameter --keep\_features.