Clarify about "initialization script"

From semantic-mediawiki.org

Hi, It is not clear to me what the "initialization script", in the mediawiki basefolder is. I'm trying to get my head around that now, but thought it might be helpful to clarify that either way?

20:59, 3 June 2016

Never mind ... finally realized it is just referring to the commands just below the text ... guess I'm tired after a long day :")

21:02, 3 June 2016

Well, it was a slightly unclear, also there was a duplicated part of the sentence which I just removed. Since MW 1.25 I just handcrafted "composer.local.json" files to avoid having to fiddle with "composer.json" on every update.

21:51, 3 June 2016