I think a more practical one could be useful (this one was philosophical! explaining what these things are); a walkthrough, kinda like:

""press xxx to create a new tab. press xxx to switch to the new one you created. now press xxx to create a new horizontal window. press xxx to switch to it. xxx to create a vertical one...

close vi. type vi *.php to open all php files into separate buffers. press xxx to open 1.php and 2.php side-by-side...""