added link to video

README.md

@@ -1,4 +1,8 @@
-Speak the current time and date in the Slovak language on a button press event
+Speak the current time and date in the Slovak language on a button press event (for blind people).
+
+Click on the picture to see the video with the `kukuc-clock` in action
+
+[![kukuc-clock-photo](assets/kukuc-clock-photo.png)](https://peertube.virtonline.eu/w/a89zuDyvP2HAFi1GWmczfa)
 
 Hardware
 --------
@@ -12,7 +16,7 @@ Hardware
 
 - USB type-A to microUSB cable
 
-- USB power supply 5V 500mA
+- micro USB power supply 5V 500mA
 
 Operating system
 ----------------
@@ -67,7 +71,7 @@ Install the ALSA config file
 Run the simulation
 ------------------
 
-Test it first with emulated GPIO. It will simulate the button event: `press and hold for 8 seconds then release`. It should play the time from the speaker. It should also work on an X86 platforms under linux
+Test it first with emulated GPIO. It will simulate the button event: `press and hold for 8 seconds then release`. It should play the time from the speaker. It works also on X86 cpu without GPIO hardware under linux
 > `python3 kukuc-clock.py test`
 
 Run it!