doc: corrected indentation

README.md

@@ -25,16 +25,16 @@ We’ve provided a handy script `setup.sh` that will guide you through the setup
 
    - Clone the Repository:
 
-   ```bash
+     ```bash
-   git clone https://git.jisoonet.com/el/mariadb-setup-guide.git && \
+     git clone https://git.jisoonet.com/el/mariadb-setup-guide.git && \
-   cd mariadb-setup-guide
+     cd mariadb-setup-guide
-   ```
+     ```
 
    - Make the script executable:
 
-   ```bash
+     ```bash
-   chmod +x setup.sh
+     chmod +x setup.sh
-   ```
+     ```
 
 1. **Run the Setup Script:**