Changed the title format for keynotes and panels by replacing colons with newlines to avoid clashes with titles of panels and keynotes that contain colons.
Added the ability to specify custom page titles for invited talks using strings different from 'keynote'.
Changed the title format for keynotes and panels by replacing colons with newlines to avoid clashes with titles of panels and keynotes that contain colons.
Added the ability to specify custom page titles for invited talks using strings different from 'keynote'.
Updated the README file to reflect these changes.