docs: update readme

README.md

@@ -13,11 +13,13 @@ A secure, self-hostable "burn after reading" paste service with ephemeral storag
 
 ## Architecture
 
-- Gleam: Type-safe language built upon the BEAM
+| Component    | Description                                                                      |
-- Web: Wisp framework + Mist HTTP server
+| ------------ | -------------------------------------------------------------------------------- |
-- Frontend: Lustre for HTML rendering
+| Backend/Core | Gleam (type-safe language built upon the BEAM)                                   |
-- Storage: In-memory only (no persistence)
+| Web          | Wisp framework + Mist HTTP server                                                |
-- Security: AES-256-GCM client-side encryption, CSRF tokens, rate limiting, security headers
+| Frontend     | Lustre for HTML rendering                                                        |
+| Storage      | In-memory only (no persistence)                                                  |
+| Security     | AES-256-GCM client-side encryption, CSRF tokens, rate limiting, security headers |
 
 ## Configuration
 
@@ -47,7 +49,9 @@ For development, you can use:
 SECRET_KEY_BASE=dev gleam run
 ```
 
-## Quick Start
+## How to run
+
+### Development
 
 ```bash
 # Clone and build
@@ -58,22 +62,26 @@ gleam run
 
 The server starts on `http://localhost:3000`.
 
-## Docker image+deployment
+Note: you can run tests with `gleam test`.
 
-### Build
+### Production
+
+Production environment is meant to be run via Docker.
+
+You can build the Docker image with:
 
 ```bash
 docker build -t spasteg .
 ```
 
-### Run
+Then run the container with:
 
 ```bash
 # Generate a secure key
 docker run -p 3000:3000 -e SECRET_KEY_BASE=$(openssl rand -base64 48) spasteg
 ```
 
-**With custom port:**
+Or use a custom port:
 
 ```bash
 docker run -p 8080:3000 -e SECRET_KEY_BASE=$(openssl rand -base64 48) -e PORT=3000 spasteg