Move ids poster to posterdown_ids and restore original posterdown_html

Change-Id: Ib44b4020134c403a2946d0fc4b79777e9ecbe3ac
diff --git a/images/ids_poster.png b/images/ids_poster.png
new file mode 100644
index 0000000..6125e2c
--- /dev/null
+++ b/images/ids_poster.png
Binary files differ