Enhance README with RAG support and quickstart guide

README.md

@@ -1,4 +1,133 @@
-# Chergpt-Basic: Custom Chat Assistant
-Added RAG (create vector embeddings using a sep python script)
+# Chergpt-Basic: Custom Chat Assistant  
 
-See https://github.com/String-sg/chergpt-basic/ for original repo
+Chergpt-Basic is a **simplified, login-free ChatGPT-like interface** designed for quick deployment.  
+
+- ✅ Mobile-friendly  
+- ✅ Easy to deploy on [Streamlit](https://streamlit.io/)  
+- ✅ Beginner-friendly
+- 🆕 Now with RAG support (via vector embeddings via the admin web-interface)
+
+## Desktop Preview
+![image](https://github.com/String-sg/chergpt-basic/assets/44336310/73912243-d638-4b48-a2a8-2ed54d79ec80)  
+
+## Mobile Preview
+![image](https://github.com/String-sg/chergpt-basic/assets/44336310/d77d5654-699a-405e-a65d-880f983b22b4)  
+
+---
+
+## ⚡ Quickstart (copy–paste setup)  
+
+
+Before deploying, you only need **3 things** in your `Secrets.toml`:  
+
+```toml
+OPENAI_API_KEY = "your_api_key_here"
+DB_CONNECTION_STRING = "your_neondb_string_here"
+ADMIN_PASSWORD = "set this to what you want"
+GLOBAL_PASSWORD = "optional_password_here"
+```
+
+**Don't have the values? Detailed instructions in the section below**
+OPENAI_API_KEY = from OpenAI
+DB_CONNECTION_STRING: from NeonDB
+ADMIN_PASSWORD: compulsory, you need this to setup and customize your bot 
+GLOBAL_PASSWORD: optional, lets you restrict access with a single password
+
+👉 Once these are set, head to Deploy on Streamlit
+ and you’re live!
+## 🌟 Features  
+
+- Add **custom instructions** to guide student interactions.  
+- **Download chatlogs** for later analysis.  
+- Generate **learning/teaching analytics** from chatlogs.  
+- Optional **password protection** (see [authentication guide](https://docs.streamlit.io/knowledge-base/deploy/authentication-without-sso)).  
+
+---
+
+## 🎯 Use Cases  
+
+Chergpt-Basic can be used for:  
+
+- Creating **student personas** (e.g. historical figures, patients, role-play scenarios).  
+- Building **guided escape rooms** for language learning (e.g. Chinese with tasks as checkpoints).  
+- Running **interactive lessons** with analytics feedback.  
+
+---
+
+## 🚀 Live Examples  
+
+- [Physics (Lookang fork)](https://chergpt-physics-lookang.streamlit.app/)  
+- [Physics (CPDD deployment)](https://chergpt-physics-cpdd.streamlit.app/)  
+
+---
+
+## 🛠️ Getting Started  
+
+There are **3 simple steps** to deploy your own Chergpt-Basic app:  
+
+1. **Set up your database** (for storing chatlogs).  
+2. **Get your OpenAI API key**.  
+3. **Deploy to Streamlit**.  
+
+---
+
+### 1. Set up your backend (Database)  
+
+We recommend [**NeonDB**](https://console.neon.tech/) (free tier works well).  
+
+1. Create an account at [Neon](https://console.neon.tech/).  
+2. Start a free project (choose **Singapore** region if relevant).  
+3. Copy your **DB connection string** — you’ll need this later.  
+
+📌 This string is what allows Chergpt-Basic to save chat data. Keep it safe.  
+
+---
+
+### 2. Get your OpenAI API key  
+
+1. Go to [OpenAI API keys](https://platform.openai.com/account/api-keys).  
+2. Click **Create new secret key**.  
+3. Copy it somewhere safe — you’ll need it for deployment.  
+
+💡 Not sure how? Follow [this beginner-friendly guide](https://teachertech.beehiiv.com/p/api-openai).  
+
+---
+
+### 3. Deploy on Streamlit  
+
+Click below to auto-deploy:  
+👉 [**Deploy Chergpt-Basic**](https://share.streamlit.io/deploy)  
+
+Then:  
+
+1. Create a **Streamlit account** (free).  
+2. Connect your **GitHub account**.
+3. Fork the repo → `String-sg/Chergpt-basic`.  
+4. In **Advanced Settings → Secrets.toml**, paste:  
+
+   ```toml
+   OPENAI_API_KEY = "your_api_key_here"
+   DB_CONNECTION_STRING = "your_neondb_string_here"
+   ADMIN_PASSWORD = "set this to what you want"
+   GLOBAL_PASSWORD = "optional_password_here"
+   ```
+
+# Don't have a Github account and just want to deploy without cloning?
+Sure, you can!<br>
+Go to streamlit.io + create an account, login
+
+In the top right corner, click create app
+<img width="754" height="87" alt="image" src="https://github.com/user-attachments/assets/80b95beb-9c77-4e1f-a90a-8d75a7a34a79" />
+
+Select **Deploy a public app from Github**
+<img width="1087" height="393" alt="image" src="https://github.com/user-attachments/assets/85611478-6ea1-4aa2-8229-725cab9f5744" />
+
+Setup your app with the following fields
+- Repository = https://github.com/String-sg/chergpt-basic/ (You can click "Paste Github URL" and enter this)
+- Branch = main
+- Main file path = main.py
+- APP URL = choose your own or use the default
+<img width="821" height="643" alt="image" src="https://github.com/user-attachments/assets/d55f4c30-9cff-4282-88aa-2f2c3c34f8da" />
+
+Click on advanced settings, paste in the details you previously obtained
+<img width="859" height="620" alt="image" src="https://github.com/user-attachments/assets/0d5506bc-c5c7-4b6b-8c86-96fb2211560d" />