feat: Initialize Rust blog CMS project with Axum, Askama, SQLite, and DevContainer setup.

README.md

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+# Rust Blog CMS
+
+A simple blog CMS built with Rust, Axum, Askama, and SQLite.
+
+## Prerequisites
+
+- [Rust & Cargo](https://rustup.rs/) (latest stable version)
+
+## Configuration
+
+1. Copy the `.env.example` file to create your local `.env` file:
+   ```bash
+   cp .env.example .env
+   ```
+
+2. Open the `.env` file and set your environment variables:
+   - `PORT`: The port your server will listen on (default is `3000`).
+   - `DATABASE_URL`: The connection string for your SQLite database (default is `sqlite://data.db`).
+
+## Database Setup
+
+*If you are using the `sqlx` CLI, you can create the database with:*
+
+```bash
+cargo install sqlx-cli --no-default-features --features rustls,sqlite
+sqlx database create
+```
+*(Optionally run migrations if any exist: `sqlx migrate run`)*
+
+## Running the app
+
+To start the server, simply run:
+
+```bash
+cargo run
+```
+
+Then, open your web browser and navigate to `http://localhost:3000` (or whichever port you configured).