Update README.

Included instructions to add this package to the project's composer.json file.
adilbaig · Apr 3, 2014 · 9ef1e42 · 9ef1e42
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diff --git a/README.md b/README.md
@@ -2,9 +2,24 @@ PHP PagerDuty Integration API
 =========
 This library provides a PHP class to trigger events using the [PagerDuty Integration API](http://developer.pagerduty.com/documentation/integration/events)
 
+Installation :
+----
+Add this line to your project's `composer.json`
+````
+{
+...
+    "require": {
+        "adilbaig/pagerduty": "dev-master"
+    }
+...
+}
+````
+
 Usage:
 ----
 ````
+use \PagerDuty\PagerDuty;
+
 $pagerDuty = new PagerDuty("my GUID");
 $request = $pagerDuty->makeRequest(PagerDuty::TYPE_TRIGGER, "Service is down");
 echo "Request : ", json_encode($request);