Update readme.md

Author: bhavyaa30

Core ServiceNow APIs/GlideAggregate/Count All Open Incidents Per Priority/readme.md

@@ -1,4 +1,21 @@
-We want to dynamically calculate the number of open incidents for each priority level (1 - Critical, 2 - High, 3 - Moderate, 4 - Low) using server-side scripting.
-Table: incident
-Field: priority, state
-This script uses **GlideAggregate** to count the number of **open incidents** per priority dynamically. Useful for dashboards, automated scripts, or business rules.
+# Count Open Incidents per Priority Using GlideAggregate
+
+## Overview
+This script dynamically calculates the **number of open incidents** for each priority level using **server-side scripting** in ServiceNow.  
+Priority levels typically include:  
++ 1 – Critical  
++ 2 – High  
++ 3 – Moderate  
++ 4 – Low  
+
+The solution leverages **GlideAggregate** to efficiently count records grouped by priority. This approach is useful for:  
++ Dashboards  
++ Automated scripts  
++ Business rules  
++ SLA monitoring and reporting  
+
+---
+
+## Table and Fields
++ **Table:** `incident`  
++ **Fields:** `priority`, `state`