cbx33/gitt — pull request #57 by lb1a (2014-06-05 13:16:28+00:00)
Title: Switched arrows in DAG to point backwards in time

The image used in w4-d1 is pointing forward in time, not possible from a git point of view. I flipped them to point backwards. Only did this to the source svg image. Not sure how you create the actual image used in the book.