Update README.md

Author: malkasun

README.md

@@ -1 +1,45 @@
-# TextFormatRibbonAddIn
+# PowerPoint Ribbon Add-in: Superscript & Subscript
+
+This is a Microsoft PowerPoint VSTO Add-in that adds two custom buttons — **Superscript** and **Subscript** — to the Home tab. It allows users to quickly apply typographic formatting to selected text inside slides.
+
+---
+
+## ✨ Features
+
+- Adds a new **"Text Formatting"** group to the PowerPoint Home tab
+- Allows quick formatting of selected text:
+  - 🔼 **Superscript** — Raises characters (e.g., exponents)
+  - 🔽 **Subscript** — Lowers characters (e.g., chemical formulas)
+
+---
+
+## 🧰 Built With
+
+- Visual Studio 2022
+- .NET Framework
+- Visual Studio Tools for Office (VSTO)
+
+---
+
+## 🚀 How to Use
+
+1. Clone or download this repository
+2. Open the `.sln` file in Visual Studio
+3. Build the solution
+4. Press `F5` to run PowerPoint with the add-in
+5. Select text in any slide and use the buttons in the ribbon
+
+---
+
+## 📦 Deployment
+
+You can publish the add-in via:
+
+- 🔹 **ClickOnce**
+- 🔹 MSI Installer (optional)
+
+---
+
+## 📝 License
+
+MIT — feel free to use and modify this project.