Fix formatting in README for installation instructions

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

README.md

@@ -9,17 +9,17 @@ environment's system tray.
 
 1. **NextDNS CLI**: The script controls the nextdns service. If you haven't installed it yet:
 
-```bash
-sh -c 'curl -sL https://nextdns.io/install | sh'
-```
+   ```bash
+   sh -c 'curl -sL https://nextdns.io/install | sh'
+   ```
 
 1. **Python 3 & PyQt6**: The interface is built using Python 3 and the Qt6
    toolkit. (This is installed by default on (K)ubuntu.)
 
-```bash
-sudo apt update
-sudo apt install python3 python3-pyqt6
-```
+   ```bash
+   sudo apt update
+   sudo apt install python3 python3-pyqt6
+   ```
 
 1. **Polkit Agent**: The script uses pkexec to handle start/stop commands safely. Most desktop environments (KDE, GNOME, XFCE) come with this pre-installed.
 
@@ -51,30 +51,30 @@ Preview what would be removed:
 
 1. **Copy the files to your home directory:**
 
-```bash
-# Create directories if they don't exist
-mkdir -p ~/.local/bin ~/.local/share/applications ~/.local/share/icons
-# Copy the specific files
-cp home/.local/bin/nextdns-tray ~/.local/bin/
-cp home/.local/share/applications/nextdns-tray.desktop ~/.local/share/applications/
-cp home/.local/share/icons/nextdns.png ~/.local/share/icons/
-```
+   ```bash
+   # Create directories if they don't exist
+   mkdir -p ~/.local/bin ~/.local/share/applications ~/.local/share/icons
+   # Copy the specific files
+   cp home/.local/bin/nextdns-tray ~/.local/bin/
+   cp home/.local/share/applications/nextdns-tray.desktop ~/.local/share/applications/
+   cp home/.local/share/icons/nextdns.png ~/.local/share/icons/
+   ```
 
 1. **Make the script executable**
 
-```bash
-chmod +x ~/.local/bin/nextdns-tray
-```
+   ```bash
+   chmod +x ~/.local/bin/nextdns-tray
+   ```
 
-The bundled `nextdns-tray.desktop` launcher runs `nextdns-tray` directly (via `PATH`) so it is not tied to any repository location.
-If your desktop session does not include `~/.local/bin` in `PATH`, use an absolute path in `~/.local/share/applications/nextdns-tray.desktop`.
+   The bundled `nextdns-tray.desktop` launcher runs `nextdns-tray` directly (via `PATH`) so it is not tied to any repository location.
+   If your desktop session does not include `~/.local/bin` in `PATH`, use an absolute path in `~/.local/share/applications/nextdns-tray.desktop`.
 
 1. **(Optional) Add to Autostart**: If you want the tray to start automatically when you log in:
 
-```bash
-mkdir -p ~/.config/autostart
-cp ~/.local/share/applications/nextdns-tray.desktop ~/.config/autostart/
-```
+   ```bash
+   mkdir -p ~/.config/autostart
+   cp ~/.local/share/applications/nextdns-tray.desktop ~/.config/autostart/
+   ```
 
 ### Manual Installation (equivalent)