Add max recent files and a 'see more' button to welcome.el

Add an example image for org-welcome.el

Add button to open Emacs tutorial in Learning Emacs section.

Adjust formatting

Add option to hide Emacs image, toggle inline images by default

Remove unused function

Fix recent files "show more" button

Name change from welcome-org to org-welcome

Correct package header info.

Tweak exported markdown README headings.

Add markdown copy of README.

Add GPLv3

Initial commit