Updating agent doc to use magic constant for API token
@@ -76,7 +76,7 @@ and use it on your hosts by running:
```sh
curl -sSL https://dl.signalfx.com/signalfx-agent.sh > /tmp/signalfx-agent.sh
-sh /tmp/signalfx-agent.sh <access token>
+sh /tmp/signalfx-agent.sh YOUR_SIGNALFX_API_TOKEN
```
##### Chef
