Looking for Source code to edit scrolling message on main page

Good afternoon,

I have a scrolling banner on the mainpage. I can edit the banner information when i click edit main page which is cool. i need to be able to go to the source code. There was an icon to be able to do that but I am not finding it. Can you provide me with instructions to see my source code for the scrolling banner?

Spanglish Toastmasters - 7703731

MainPage - Spanglish Club 7703731