Tweaked the app.js.

Add README.md with associating action with rules that
reacts to trigger events.

Fix issue #9.
diff --git a/README.md b/README.md
index f400c6d..21c476e 100644
--- a/README.md
+++ b/README.md
@@ -111,6 +111,41 @@
 
 `wsk trigger delete rss_trigger`
 
+##Associate rss trigger and action by using rule
+ 1. Create a new trigger, for example:
+ `wsk trigger create rss_trigger --feed /guest/rss/rss_feed -p url 'http://rss.nytimes.com/services/xml/rss/nyt/HomePage.xml'  -p pollingInterval  '2h'   -p whiskhost  whiskhostip`
+
+ 2. Create a 'hello.js' file that reacts to the trigger events with action code below:
+ ```
+ function main(params) {
+   var title = params.title || 'world';
+   var des = params.description || 'default_description';
+  return {payload: 'hello,' + title + '!'+ 'description' + des};
+
+ }
+ ```
+ Make sure the action exists:
+ `wsk action update hello hello.js`
+
+ 3. Create the rule that associate the trigger and the action:
+ `wsk rule create rss_rule rss_trigger hello`
+
+ 4. So once there are any rss updates that trigger events, you can verify the action was invoked by checking the most recent activations:
+
+ `wsk activation list --limit 1  hello`
+
+ ```
+ activations
+ f9d41bd2589943efa4f36c5cf1f55b44             hello
+ ```
+
+ `wsk activation result f9d41bd2589943efa4f36c5cf1f55b44`
+
+ ```
+ {
+     "payload": "hello,Lorem ipsum 2016-09-13T03:05:57+00:00!descriptionUllamco esse officia cillum exercitation ullamco aute aute quis adipisicing officia."
+ }
+ ```
 ##How to do tests
 The integration test could only be performed with a local openwhisk deployment:
 
diff --git a/rssEventProvider/app.js b/rssEventProvider/app.js
index 53c9052..616519d 100755
--- a/rssEventProvider/app.js
+++ b/rssEventProvider/app.js
@@ -190,11 +190,11 @@
                     includeItem = areKeywordsFoundInItems(keywordsArray,item, 0.6);//Hardcoded threshold. Maybe externalize later
                      
                     if(includeItem) {
-                      fireTrigger(newTrigger.namespace,newTrigger.name,itemContentMap, newTrigger.apiKey)
+                      fireTrigger(newTrigger.namespace,newTrigger.name, newTrigger.whiskhost, itemContentMap, newTrigger.apiKey)
                     }
                 }
                 else {
-                    fireTrigger(newTrigger.namespace,newTrigger.name,itemContentMap, newTrigger.apiKey)
+                    fireTrigger(newTrigger.namespace,newTrigger.name, newTrigger.whiskhost, itemContentMap, newTrigger.apiKey)
                 }
             }
         }
@@ -206,7 +206,7 @@
     });
 }
 
-function fireTrigger(namespace, name, payload, apiKey) {;
+function fireTrigger(namespace, name, whiskhost, payload, apiKey) {;
     var baseUrl = "https://" + whiskhost + "/api/v1/namespaces";
     var keyParts = apiKey.split(':');
 
@@ -326,6 +326,7 @@
         namespace:params.namespace,
         pollingInterval: params.pollingInterval,
         filter: params.filter,
+        whiskhost:params.whiskhost,
         timeLastChecked:timeLastChecked
     };