fixed typos

introduction.md

@@ -84,7 +84,7 @@ Each photo comes along with an Italian caption.
 
 Instead of relying on open-source translators, we decided to use DeepL. **Translation quality** of the data was the main 
 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:
+but the captions have to be handled accordingly. We translated 700K captions and we evaluated their quality.
 
 Three of us looked at a sample of 100 of the translations and rated them with scores from 1 to 4. 
 The meaning of the value is as follows: 1, the sentence has lost is meaning or it's not possible to understand it; 2, it is possible to get the idea
@@ -99,7 +99,7 @@ weighting - of 0.858 (great agreement!).
 | person walking down the aisle                                                     | persona che cammina lungo la navata                                                                     | 
 | popular rides at night at the county fair                                         | giostre popolari di notte alla fiera della contea                                                       | 
 
-\t\t\t
+
 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).