Created README.md

Author: bhavishyeahv

Client-Side Components/Client Scripts/Color-coded Priority field for improved UX/README.md

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+# Field Color-Coding Based on Choice Values
+
+## Purpose
+Dynamically change the background color of any choice field on a form based on the selected backend value.
+
+## How to Use
+1. Create an OnChange client script on the desired choice field.
+2. Replace `'your_field_name'` in the script with your actual field name.
+3. Update the `colorMap` with relevant backend choice values and colors.
+4. Optionally update the `labelMap` for tooltips.
+5. Save and test on the form.
+
+## Key Points
+- Works with any choice field
+- Uses backend values of choices for mapping colors.
+
+## Demo
+
+<img width="1710" height="557" alt="image" src="https://github.com/user-attachments/assets/9fb9e68a-1ade-4eb5-81cc-c947c970bd6f" />
+