Update README.md

README.md

@@ -17,7 +17,7 @@ The prediction labels may assume three possible values:
 ## Usage #1 (HuggingFace Transformers)
 In the environment on which you want to run the project, type:
 ```markdown
-pip install --extra-index-url https://test.pypi.org/simple/ ispin==0.2.0
+pip install --extra-index-url https://test.pypi.org/simple/ ispin==0.2.1
 ```
 
 NOTE: during the first execution, a total of two different models will be downloaded: