Updated the README.md

Author: Sriharsha19

Client-Side Components/UI Actions/Incident Cancellation/README.md

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+## Simplified Incident Cancellation UI Action
+
+## Overview
+This enhancement improves the Incident Cancellation UI Action in ServiceNow by replacing an unnecessarily complex GlideModal confirmation structure with a leaner, more maintainable confirmation() dialog.
+The new approach enhances code readability, reduces script overhead, and aligns with ServiceNow client–server scripting best practices.
+
+## Problem Statement
+The previous incident cancellation UI Action used a GlideModal confirmation window, which:
+- Increased code complexity with extra modal creation and rendering steps
+- Complicated maintainability with mixed client-server logic
+- Provided no additional usability benefit over native browser confirmation
+
+
+## Proposed Enhancement
+The enhancement simplifies the flow by using JavaScript’s built-in confirm() method for quick user confirmation and Added a work note for traceability: “Cancelled this incident.”
+
+## Updated Logic:
+- Client-side:
+Confirm with confirm() dialog before proceeding.
+If confirmed, submit action via gsftSubmit() API to call the server script.
+
+- Server-side:
+Update the incident state to "Cancelled" (state = 8).
+Add a work note for traceability: “Cancelled this incident.”
+Redirect the user back to the current record after completion.
+
+# Benefits
+- Simpler and cleaner codebase
+- Avoids unnecessary modal logic.
+- Better maintainability
+- Easier for future developers to modify or extend.
+- Improved traceability
+- Includes meaningful work notes for auditing.
+- Aligned with ServiceNow best practices
+- Maintains proper separation of client and server logic following official guidelines.​
+
+## How to Use
+
+- Navigate to System UI → UI Actions in ServiceNow.
+- Create a new UI Action on the Incident table.
+### Set:
+- Action name: Cancel Incident
+- Client: Checked
+- Onclick: cancelIncident();
+- Condition: current.state != 8 && (current.state == '1' || current.state == '2' || current.state == '3');
+- Add the provided client and server scripts from the script.js file
+- Test the action on an incident form.
+
+## Issue Reference
+This contribution is based on the issue titled: `Issue with UI Action Implementation for Simplified Incident Cancellation`
+## Issue no: [#2299](https://github.com/ServiceNowDevProgram/code-snippets/issues/2299)
+— proposed to improve readability, maintainability, and UX by using a confirmation dialog instead of a GlideModal construct.