docs: commit-graph: fix some whitespace in the diagram

In the merge diagram, some whitespace is missing which
makes it a bit confusing, fix that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Berg 2020-08-13 16:50:53 +02:00 committed by Junio C Hamano
parent 47ae905ffb
commit 6dfefe70a9