Possible Shortcode Typo in Help Files

i have been playing around with some of the shortcodes using the Help tutorial that came with the plugin. i came across this one and all it gives me is text when displayed on my website:

[plumwd_youtube_display channel="plumwd" videonum="4"]

if i use the “youtube” part of the shortcode all i get is text. but if i change it to

[plumwd_twitch_display channel="plumwd" videonum="4"]

then it displays the channel. i don’t know anything about coding, so forgive me if i am wrong and this just another one of my user errors. its just that i’ve been fiddling with this shortcode for a few minutes and was unable to get it work until i changed the “youtube” to “twitch” so i was wondering if it was just a typo.

http://wordpress.org/plugins/twitch-tv-embed-suite/