[Buildbot] #2993: Better document the multi-container Docker solution

[Buildbot trac]

#2993: Better document the multi-container Docker solution
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Reporter:  Ben     |       Owner:
    Type:  task    |      Status:  new
Priority:  minor   |   Milestone:  undecided
 Version:  master  |  Resolution:
Keywords:  docker  |
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Comment (by Ben):

 This should probably best be done in a "Deploying buildbot" section of the
 doc.

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Ticket URL: <http://trac.buildbot.net/ticket/2993#comment:3>
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