Create README.md

Author: shivamvish160

Core ServiceNow APIs/GlideRecord/GlideRecord Query Helper/README.md

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+# GlideRecordHelper for ServiceNow
+
+A simple utility class to help ServiceNow developers query records using GlideRecord with cleaner syntax.
+
+## How to Use
+
+
+var helper = new GlideRecordHelper('incident');
+var records = helper.getRecords({ priority: 1, active: true });
+
+records.forEach(function(record) {
+    gs.info(record.number);
+});