Add LICENSE and improve README for multimodal AAC chatbot

Co-authored-by: akashkolte <23047489+akashkolte@users.noreply.github.com>

LICENSE

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+Copyright (c) 2026 akashkolte
+
+All rights reserved. No permission is granted to use, copy, modify, or distribute this software.

README.md

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-# multimodal_aac_chatbot
-A multimodal chatbot for AAC users
+# Multimodal AAC Chatbot
+
+A multimodal chatbot designed to empower **Augmentative and Alternative Communication (AAC)** users — enabling more natural, accessible, and expressive conversations through the power of AI.
+
+---
+
+## What is AAC?
+
+**Augmentative and Alternative Communication (AAC)** refers to tools, strategies, and technologies that help people who have difficulty with spoken or written communication. AAC users may include individuals with:
+
+- Autism Spectrum Disorder (ASD)
+- Cerebral Palsy
+- ALS / Motor Neurone Disease
+- Aphasia
+- Down Syndrome
+- Or any other condition that impacts verbal communication
+
+AAC tools range from low-tech picture boards to high-tech speech-generating devices. This project brings the power of modern AI chatbots to the AAC community.
+
+---
+
+## About This Project
+
+The **Multimodal AAC Chatbot** is an AI-powered conversational assistant built with AAC users in mind. It accepts multiple input modalities — such as text, images, and symbols — and generates clear, accessible responses to support communication.
+
+### Key Features
+
+- 🗣️ **Multimodal Input** — Communicate using text, images, symbols, or a combination of all three
+- 🤖 **AI-Powered Responses** — Leverages large language models (LLMs) to generate natural and context-aware replies
+- ♿ **Accessibility First** — Designed from the ground up for users with communication challenges
+- 🧩 **AAC-Friendly Interface** — Supports common AAC workflows and symbol-based communication
+- 💬 **Conversational Context** — Maintains conversation history for more coherent, multi-turn dialogues
+
+---
+
+## Getting Started
+
+### Prerequisites
+
+- Python 3.8 or higher
+- pip
+
+### Installation
+
+1. **Clone the repository**
+   ```bash
+   git clone https://github.com/akashkolte/multimodal_aac_chatbot.git
+   cd multimodal_aac_chatbot
+   ```
+
+2. **Install dependencies**
+   ```bash
+   pip install -r requirements.txt
+   ```
+
+3. **Run the chatbot**
+   ```bash
+   python app.py
+   ```
+
+---
+
+## Usage
+
+Once running, users can interact with the chatbot by:
+
+- Typing a text message
+- Uploading an image or symbol to describe their intent
+- Combining symbols and short text phrases as AAC users typically do
+
+The chatbot will interpret the input and respond in a clear, friendly manner.
+
+---
+
+## Project Structure
+
+```
+multimodal_aac_chatbot/
+├── app.py               # Main application entry point
+├── requirements.txt     # Python dependencies
+├── README.md            # Project documentation
+└── LICENSE              # License information
+```
+
+---
+
+## Contributing
+
+This project is currently under active development. Feedback and suggestions from the AAC community and researchers are very welcome — please open an issue to share your thoughts.
+
+> **Note:** This software is proprietary. All rights are reserved. Any use, copying, modification, or distribution requires explicit written permission from the author.
+
+---
+
+## License
+
+All rights reserved. No permission is granted to use, copy, modify, or distribute this software. See the [LICENSE](LICENSE) file for details.
+
+---
+
+## Acknowledgements
+
+This project is dedicated to the AAC community and the researchers, caregivers, and developers working to make communication more accessible for everyone.