deletions | additions       diff --git a/layout.md b/layout.md  index bfdbab6..4c791a1 100644  --- a/layout.md  +++ b/layout.md 
...
Introduction.md  /screen.tiff  Links.md  diff --git a/screen.tiff b/screen.tiff  new file mode 100644  index 0000000..e35c88b  Binary files /dev/null and b/screen.tiff differ