drm-intel: Document sob requirements better

Yeah dim apply-patch could probably autofudge this, but it's too close
to w/e time for me to figure out how to do that.

Noticed since a few folks forgot this when pushing other people's
patches.

v2: Adjust to Tvrtko's patch and also update todo.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

dim

@@ -34,6 +34,9 @@
 # - add option to check-patch to check stdin
 # - integrate ninja-check? Or too much checkers considered harmful?
 #   https://lists.linuxfoundation.org/pipermail/ksummit-discuss/2014-May/000554.html
+# - add patchwork Link: also after manually resolving conflicts in drm
+#   apply-resolved
+# - pull in dim extract-tags tool from Ville
 
 # fail on any goof-up
 set -e

drm-intel.rst

@@ -346,6 +346,10 @@ An inexhaustive list of details to check:
 
 * The patch does not introduce new `sparse` warnings.
 
+* When pushing someone else's patch you must add your own signed-off per
+  http://developercertificate.org/. dim apply-branch should do this
+  automatically for you.
+
 On Confidence, Complexity, and Transparency
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