[PATCH 25/25] patman: Add basic documentation for new features

[Simon Glass]

Describe the new subcommands and how they should be used in a normal
workflow.

Note that the naming of branches is very rigid, or 'opinionated' in
marketing terms. Patman can track a single branch for each version of a
series and they must all be named the same, except for the
version-number suffix. Version 1 series have no suffix.

This description is fairly bare-bones but should be enough for some
initial testing and comments.

Signed-off-by: Simon Glass <sjg at chromium.org>
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 doc/develop/pics/patman.jpg | Bin 0 -> 97131 bytes
 tools/patman/patman.rst     | 283 +++++++++++++++++++++++++++++++++++-
 2 files changed, 280 insertions(+), 3 deletions(-)
 create mode 100644 doc/develop/pics/patman.jpg

Applied to sjg/master, thanks!