Add comprehensive repository description with project details, tech stack, and model specification

readme.md

@@ -1,7 +1,44 @@
-run:
-cp .env.example .env
+# LLM Infrastructure on Oracle Cloud
 
-edit .env and fill values
-set -a; source .env; set +a
-terraform init
-terraform apply -auto-approve
+**Terraform infrastructure-as-code to deploy a free-tier LLM server on Oracle Cloud Infrastructure (OCI)**
+
+This project automatically provisions and configures an ARM64 virtual machine on OCI's Always Free tier, running the [llama.cpp](https://github.com/ggml-org/llama.cpp) server with the **TinyLlama-1.1B-Chat-v1.0** model (GGUF format, Q4_K_M quantization).
+
+## 🚀 What It Does
+
+- Provisions a complete OCI infrastructure (VCN, subnet, security groups, compute instance)
+- Uses OCI's free-tier **VM.Standard.A1.Flex** ARM64 shape (4 OCPUs, 24GB RAM)
+- Automatically installs and configures llama.cpp
+- Downloads and deploys the TinyLlama-1.1B model
+- Starts an LLM inference server on port 8000
+- Ready for REST API requests and chat interactions
+
+## 🛠️ Technologies Used
+
+- **Terraform** - Infrastructure as Code
+- **Oracle Cloud Infrastructure (OCI)** - Cloud platform (free tier)
+- **llama.cpp** - High-performance LLM inference engine
+- **TinyLlama-1.1B-Chat-v1.0** - Lightweight chat model (GGUF Q4_K_M)
+- **cloud-init** - Automated instance configuration
+
+## 📋 Quick Start
+
+1. **Copy and configure environment variables:**
+   ```bash
+   cp .env.example .env
+   ```
+
+2. **Edit `.env` and fill in your OCI credentials and settings**
+
+3. **Load environment variables:**
+   ```bash
+   set -a; source .env; set +a
+   ```
+
+4. **Deploy infrastructure:**
+   ```bash
+   terraform init
+   terraform apply -auto-approve
+   ```
+
+After deployment, the LLM server will be accessible at `http://<instance-public-ip>:8000`