docs: improve Getting Started section with clearer sequential instructions

Restructures the installation and setup instructions in the README to present them
in a logical, sequential order. This change prevents confusion by clearly indicating
that containers must be started before project initialization. The new numbered
format creates a step-by-step workflow that guides users through the entire process
from starting the environment to accessing the application and finally stopping
the services when done. Each step now includes more detailed explanations of what
each command accomplishes, improving the overall user experience for newcomers.

Author: nanoninja

README.md

@@ -36,34 +36,47 @@ git clone https://github.com/nanoninja/docker-nginx-php-mysql.git
 cd docker-nginx-php-mysql
 ```
 
-### Initialize the project
+## 🏁 Getting Started
 
-This command will set up everything you need to start development:
+Setting up your development environment involves just a few simple steps:
 
-```bash
-make init
-```
-
-## 🏁 Quick Start
+### 1. Start the Docker environment
 
-### Start the environment
+First, start all the Docker containers required for the environment:
 
 ```bash
 # Start with default environment (development)
 make start
 
-# Or explicitly select an environment
-make dev   # For development
-make prod  # For production
+# Or explicitly select an environment before starting
+make dev   # For development mode
+make prod  # For production mode
 ```
 
-### Access your application
+### 2. Initialize the project
+
+After the containers are running, initialize the project to install dependencies and set up the environment:
+
+```bash
+make init
+```
+
+This command will:
+
+- Copy the composer configuration template
+- Install PHP dependencies via Composer
+- Set up the appropriate file permissions
+- Prepare the environment for development
+
+### 3. Access your application
+
+Once the environment is running and initialized, you can access:
 
 - Web: [http://localhost:8000](http://localhost:8000)
 - Secure Web: [https://localhost:3000](https://localhost:3000) (SSL certificates must be configured)
 - PHPMyAdmin: [http://localhost:8080](http://localhost:8080) (username: dev, password: dev)
 
-### Stop the environment
+### 4. Stop the environment when finished
 
 ```bash
 make stop