Nice work! Though it might be helpful to have some info on 'sentiment' and 'subjectivity' in the About page, e.g., how they're measured, what are 'good' or 'bad

Nice work! Though it might be helpful to have some info on 'sentiment' and 'subjectivity' in the About page, e.g., how they're measured, what are 'good' or 'bad' values, and what might be inferred from the results - even a small toy example would be sufficient.