updating the readme

introduction.md

@@ -14,6 +14,17 @@ We put our **hearts** and **souls** into the project during this week! Not only
 able to make new friends and and learn a lot from each other to work towards a common goal! 
 Thank you for this amazing opportunity, we hope you will like the results. :heart:
 
+# Demo
+
+In this demo, we present two tasks:
+
++ *Text to Image*: This task is essentially an image retrieval task. The user is asked to input a string of text and CLIP is going to
+compute the similarity between this string of text with respect to a set of images. The webapp is going to display the images that
+have the highest similarity with the text query.
+
++ *Image to Text*: This task is essentially a zero-shot image classification task. The user is asked for an image and for a set of captions/labels and CLIP
+is going to compute the similarity between the image and each label. The webapp is going to display a probability distribution over the captions.
+
 # Novel Contributions
 
 The original CLIP model was trained on 400 million image-text pairs; this amount of data is not available for Italian.