better instructions

README.md

@@ -60,13 +60,13 @@ Put your sound card number `"card 0"` or `"card 1"` into the ALSA config file
 Install the ALSA config file
 > `mv .asoundrc ~/`
 
-Test it first with emulated GPIO. It will simulate button press and hold for 8 seconds
+Test it first with emulated GPIO. It will simulate the button event: 'press and hold for 8 seconds then release'
 > `python3 kukuc-clock.py test`
 
 Run it!
 -------
 
-Just run `python3 kukuc-clock.py` then press and hold the button for at least 5 seconds
+Just run `python3 kukuc-clock.py` then press and hold the button connected to the GPIO for at least 5 seconds
 > `python3 kukuc-clock.py`
 
 Pres `Ctrl+c` to exit
@@ -74,6 +74,7 @@ Pres `Ctrl+c` to exit
 Make it a service to automaticaly start and run in the backgroud
 ------------------------------------------------------
 
+Prepare the systemd service file  
 If your `$HOME` directory is other then `/home/pi` then modify the systemd service file
 > `sed -i "s#/home/pi#$HOME#g" kukuc-clock.py.service`
 
@@ -81,7 +82,7 @@ If your username and group is other then `pi` and `pi` then also run
 > `sed -i "s#User=pi#User=$USER#" kukuc-clock.service`  
 `sed -i "s#Group=pi#Group=$(id -gn)#" kukuc-clock.service`
 
-Install the systemd service files
+Install the systemd service file
 > `sudo mv kukuc-clock.service /etc/systemd/system/`
 
 Reload systemd manager configuration