Update readme.md

Author: vijaykumar7177

Client-Side Components/Catalog Client Script/Incident Sentiment Detector (Using Simple Word Matching, No AI)/readme.md

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-Automatically classify the sentiment of an incident’s description (positive, negative, neutral) based on keyword analysis — no ML or API needed.
+Incident Sentiment Detector (No AI, Pure JavaScript)
+
+A lightweight ServiceNow utility that detects sentiment (Positive / Negative / Neutral) of an Incident’s short description or comments using simple keyword matching — no AI APIs or external libraries required.
+
+Useful for support teams to auto-tag sentiment and analyze user frustration or satisfaction trends without expensive integrations.
+
+🚀 Features
+
+✅ Detects sentiment directly inside ServiceNow
+✅ Works without external APIs or ML models
+✅ Instant classification on form update
+✅ Adds detected sentiment to a custom field (u_sentiment)
+✅ Simple to extend — just add more positive/negative keywords
+
+🧩 Architecture Overview
+
+The solution consists of two main scripts:
+
+Component	Type	Purpose
+SentimentAnalyzer	Script Include	Processes text and returns sentiment
+Client Script (onChange)	Client Script	Calls SentimentAnalyzer via GlideAjax on short description change
+🧱 Setup Instructions
+1️⃣ Create Custom Field
+
+Create a new field on the Incident table:
+
+Name: u_sentiment
+
+Type: Choice
+
+Choices: Positive, Neutral, Negative