Giving appropriate credit to a track released under Creative Commons attribution license is really simple!
The first thing to write in your vid description is the song’s title.
Then you have to write the author (linking his profile) and the source where you found the track (a website for example).
In the end, you write the licence chosen by the artist. You have to link the info page connected to this specific Creative Commons Licence.
So, a good example of credit for a gosoundtrack song is:
Title: Just Me and You
Source: www.gosoundtrack.com (http://www.gosoundtrack.com/album/golden-club/)
Licence: CC By 4.0 (https://creativecommons.org/licenses/by/4.0/)
Need a short credit? Just write “Music by www.gosoundtrack.com”