Create README.md

Author: SuRu190

task04-innerHTML-vs-textContent/README.md

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+# Task 04 – innerHTML vs textContent
+
+## ✅ Objective:
+Understand and demonstrate the difference between `innerHTML` and `textContent`.
+
+## 💡 Concepts Practiced:
+- DOM content manipulation
+- Difference between innerHTML & textContent
+
+## 📘 What I Learned:
+- `innerHTML` parses HTML tags and renders them.
+- `textContent` treats everything as plain text.
+
+## ▶️ Example Flow:
+1. Click on buttons to update a paragraph with innerHTML and textContent.
+2. Visual difference is clearly shown in rendering.