Docs: Reducing image size.

Bug: 16836983
Change-Id: Icae889a5be228429b76aab5f364d0c5c545544d7
diff --git a/src/devices/audio/images/hub.jpg b/src/devices/audio/images/hub.jpg
index 59a9f3b..0dd44bd 100644
--- a/src/devices/audio/images/hub.jpg
+++ b/src/devices/audio/images/hub.jpg
Binary files differ