[Skiboot] [PATCH] github: update pull request template

[Oliver O'Halloran]

The current wording is a bit curt. Flesh it out a bit and put in some
useful detail.

Signed-off-by: Oliver O'Halloran <oohall at gmail.com>
---
I guess the real question we should be asking is: Why don't we take
github pull requests? The best answer I can offer is that it seems to
be impossible to get the DCO (the signed-off-by, etc) correct when using
PRs since github doesn't let you screw with the patches proper when
merging a PR. As far as I can tell anyway, I could be wrong.
---
 .github/pull_request_template.md | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index bc7d9614fb5a..ce97aa6b0676 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,3 +1,18 @@
-Please do not submit a Pull Request via github.  Our project makes use of
-mailing lists for patch submission and review.  For more details please
-see https://open-power.github.io/skiboot/
+Hi there,
+
+The skiboot project (generally) doesn't take contributions via github pull
+requests. Contributions should sent to the skiboot mailing list using the
+git-format-patch and git-send-email tools. If you're unfamiliar with these
+tools, there's a guide here:
+
+https://www.freedesktop.org/wiki/Software/PulseAudio/HowToUseGitSendEmail/
+
+The list address is:
+
+	skiboot at lists.ozlabs.org
+
+Posting to the list does not require subscribing to the list. Posts from a
+non-subscribers are moderated to cut down on spam, but anyone posting
+genuine contributions will be whitelisted.
+
+See https://open-power.github.io/skiboot/ for more details.
-- 
2.26.2