Create README.md

Author: divyajetti9

Server-Side Components/Script Includes/Get Open Incidents/README.md

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+# IncidentHelper - getOpenIncidents
+
+**Purpose:** Script Include (client-callable via GlideAjax) that returns a JSON array of active incident records.
+
+**Usage Example**
+```js
+var ga = new GlideAjax('IncidentHelper');
+ga.addParam('sysparm_name','getOpenIncidents');
+ga.getXMLAnswer(function(response){
+  var list = JSON.parse(response || '[]');
+  console.log(list);
+});