Link to the explanation of submit actions in the Gerrit Concepts presentation
Link to the explanation of submit actions in the Gerrit Concepts presentation

In the 'Gerrit - Concepts and Workflows' presentation the different
submit actions are explained based on git commit graphs, which may be
easier to understand than just reading text. Hence it's worth to link to
it from the submit actions documentation.

Release-Notes: skip
Bug: Google b/240397771
Signed-off-by: Edwin Kempin <d43fb6c98c97e553b671ed9a9318100f1de386e7@google.com>
Change-Id: I0b7b9b0bfedfba3fe314d044b968ff361b0af19c

GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit,GerritCodeReview/gerrit