Update README.md

README.md

@@ -4,6 +4,17 @@ Displays the CPU Temperature in fancy rainbow colours
 
 Should the temperature exceed 55°C, the text will be coloured red to get your attention!
 
-If you can't start the script, remember to 
+If you can't start the script, remember to :
 ```bash
 sudo chmod +x cpu.py
+```
+
+If you want to run the script in a screen (in the background):
+```bash
+screen -d -m -S CPU ./cpu.py
+```
+
+If screen isn't installed on your system:
+```bash
+sudo apt-get install screen
+```