Update future-dev-summit-ad image

Signed-off-by: Eric Poirier <eric.poirier@eclipse-foundation.org>
diff --git a/promo/images/future-dev-summit-ad.jpg b/promo/images/future-dev-summit-ad.jpg
deleted file mode 100644
index 4dcc985..0000000
--- a/promo/images/future-dev-summit-ad.jpg
+++ /dev/null
Binary files differ
diff --git a/promo/images/future-dev-summit-ad.png b/promo/images/future-dev-summit-ad.png
new file mode 100644
index 0000000..bf5434e
--- /dev/null
+++ b/promo/images/future-dev-summit-ad.png
Binary files differ