Make collectd deprecation notice appear on install section
So it's more prominant when the user first goes into the tile
@@ -58,6 +58,11 @@ You must have administrator (sudo) privileges to install this agent.
### INSTALLATION
+**We have a new agent called the SignalFx Smart Agent that wraps collectd and
+provides auto-discovery of services, among other features. See [the
+integration tile for the new agent](?selectedKeyValue=plugin:signalfx-agent)
+for more information. We strongly recommend using this new agent instead of
+collectd, which is described below for legacy purposes.**
#### Configuring the ingest endpoint
Before we can send metrics to SignalFx, we need to make sure you are sending them to
