add trigger doc

README

@@ -3,6 +3,7 @@ Jenkins RunDeck plugin
 http://wiki.jenkins-ci.org/display/JENKINS/RunDeck+Plugin
 
 This plugin is a Jenkins Notifier (Publisher) that will talk to a RunDeck instance (via its HTTP API) to schedule a job execution on RunDeck after a successful build on Jenkins.
+It is also a Jenkins Trigger, that will schedule a build on Jenkins after a job execution on RunDeck (using RunDeck WebHook Notification).
 In addition, it turns Jenkins into an "Option provider" for RunDeck, if you want to use your Jenkins build artifacts as an option to a RunDeck job.
 
 We use it to do a 0-click deployment : from commit to deploy, automatically. Jenkins build the project, and RunDeck deploys it. This plugin does the link between these 2 tools.

src/main/resources/index.jelly

@@ -1,6 +1,7 @@
 <div>
   This plugin is a Notifier (Publisher) that will talk to a <a href="http://www.rundeck.org">RunDeck</a> instance
   (via its HTTP API) to schedule a job execution on RunDeck after a successful build on Jenkins.<br />
+  It is also a Jenkins Trigger, that will schedule a build on Jenkins after a job execution on RunDeck (using RunDeck WebHook Notification).<br />
   In addition, it turns Jenkins into an <a href="http://rundeck.org/docs/RunDeck-Guide.html#option-model-provider">Option provider</a>
   for RunDeck, if you want to use your Jenkins build artifacts as an option to a RunDeck job.
-</div>
+</div>