[PATCHv2] Documentation/SubmittingPatches: Explain the rationale of git notes

[Stefan Beller <sbeller@google.com>]

This adds more explanation of why you want to have the --notes option
given to git format-patch.

Signed-off-by: Stefan Beller <sbeller@google.com>
---

Notes:
    Changes v2:
     * s/you are encouraged to/you may want to/
     * a stronger hint to use the git notes and then
       --notes for format-patch.

 Documentation/SubmittingPatches | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches
index e3c942e..f42c607 100644
--- a/Documentation/SubmittingPatches
+++ b/Documentation/SubmittingPatches
@@ -177,7 +177,12 @@ message starts, you can put a "From: " line to name that person.
 You often want to add additional explanation about the patch,
 other than the commit message itself.  Place such "cover letter"
 material between the three dash lines and the diffstat. Git-notes
-can also be inserted using the `--notes` option.
+can also be inserted using the `--notes` option. If you are one
+of those developers who cannot write perfect code the first time
+and need multiple iterations of review and discussion, you may
+want to keep track of the changes between different versions of
+a patch using notes and then also use the `--notes` option when
+preparing the patch for submission.
 
 Do not attach the patch as a MIME attachment, compressed or not.
 Do not let your e-mail client send quoted-printable.  Do not let
-- 
2.2.1.62.g3f15098