Added some docs and images

src/hepialight/main.py

@@ -170,7 +170,7 @@ def update_id(new_id):
     """Update the matrix ID, and propagate the message to it's neighbours
 
     Args:
-        new_id (List(int)): List which contains x and y coordinates ex : [x, y]
+        new_id (List(str)): List which contains x and y coordinates ex : [x, y]
     """
     global id