foster: Indicate bootloader support by release version

Change-Id: Ied2724c1093de5bde2b2b8e83ba327e90d5d3625
diff --git a/_nvidia/nvidiahshieldandroidtv.markdown b/_nvidia/nvidiahshieldandroidtv.markdown
index 1d4c08c..e9bc66e 100644
--- a/_nvidia/nvidiahshieldandroidtv.markdown
+++ b/_nvidia/nvidiahshieldandroidtv.markdown
@@ -14,6 +14,10 @@
 
 {% include supportstatus.html %}
 
+<div class='page-heading'>Notes:</div>
+<hr />
+<p class="text">Releases 3.2.3-0 and before are for the SHIELD Experience 7.1.x and earlier bootloaders only. Releases 3.5.1-0 and later only work on the SHIELD Experience 7.2.0 and later bootloaders.</p>
+
 {% include appinstall.html %}
 
 {% include download.html %}