update text for IRR

introduction.md

@@ -79,12 +79,12 @@ Instead of relying on open-source translators, we decided to use DeepL. **Transl
 reason of this choice. With the few images (wrt OpenAI) that we have, we cannot risk polluting our own data. CC is a great resource
 but the captions have to be handled accordingly. We translated 700K captions and we evaluated their quality:
 
-Two of us looked at a sample of 100 of the translations and rated them with scores from 1 to 4. 
+Three of us looked at a sample of 100 of the translations and rated them with scores from 1 to 4. 
 1: the sentence has lost is meaning or it's not possible to understand it; 2: it is possible to get the idea
 but there something wrong; 3: good, however a native speaker might complain about some translations; 4: good translation.
 
-The average score was of 3.8 and the two annotators had an inter-rater agreement - computed with [Gwet's AC1](https://bpspsychub.onlinelibrary.wiley.com/doi/full/10.1348/000711006X126600) using ordinal 
-weighting - of 0.86 (great agreement!). 
+The average score was of 3.78 and the two annotators had an inter-rater agreement - computed with [Gwet's AC1](https://bpspsychub.onlinelibrary.wiley.com/doi/full/10.1348/000711006X126600) using ordinal 
+weighting - of 0.858 (great agreement!). 
 
 | English Captions                                                                  | Italian Captions                                                                                        | 
 | ----------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------|
@@ -93,7 +93,6 @@ weighting - of 0.86 (great agreement!).
 | popular rides at night at the county fair                                         | giostre popolari di notte alla fiera della contea                                                       | 
 
 			
-
 We know that we annotated our own data; in the spirit of fairness we also share the annotations and the captions so
 that those interested can check the quality. The Google Sheet is [here](https://docs.google.com/spreadsheets/d/1m6TkcpJbmJlEygL7SXURIq2w8ZHuVvsmdEuCIH0VENk/edit?usp=sharing).