Infra 3912 - add image for Ad16

Signed-off-by: Yi Liu <yi.liu@eclipse-foundation.org>
Change-Id: I1cf3e1dc03837f2d71e1b3290eef1d22e07feb99
diff --git a/promo/images/iot_dev_survey_2020.png b/promo/images/iot_dev_survey_2020.png
new file mode 100644
index 0000000..1c1a5eb
--- /dev/null
+++ b/promo/images/iot_dev_survey_2020.png
Binary files differ