Update README.md

Copyright/trademark notes

README.md

@@ -3,7 +3,8 @@ A simple gui to record IDs as typed or from a card reader with the time.
 
 This program uses PySimpleGui to open a window that will record IDs entered into an input element.
 
-It will output a message confirming the time that the ID was recorded and it will write the ID and the time to a file for subsequent use.
+It will output a message confirming the time that the ID was recorded and it will write the ID and the time to
+a file for subsequent use.
 
 It is very close to the cookbook examples for a persistent window, the main change is to the styling and 
 to add the window.refresh() and small delay to make the feedback more human affirmative. There may be a
@@ -11,5 +12,8 @@ better way of achieving this, there is a small possibility of cards clashing in
 
 This will get reviewedin case it does prove to be an issue.
 
+The Coat of Arms of the Univeristy of Cambridge is in principle publich domain, though the logo and the particular
+production of the arms are the University's, and its use is subject to trademarking:
+https://www.cam.ac.uk/brand-resources/using-the-logo
 
-
+The purple arrow is from Emoji One, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.