diff --git a/README.md b/README.md
index 50e5693..456d1cb 100644
--- a/README.md
+++ b/README.md
@@ -1,17 +1,17 @@
 # Making my own EtherCAT device
 
 This repository contains software, pcb shematics and layouts, reference documentation etc
-that I used during my creation of my own EtherCAT device.
+that I used during the creation of my own EtherCAT device.
 
 This job is documented in a series of Youtube videos, from my first attempts to understand
 how EtherCAT works, to making my own pcb, program it and testing it in LinuxCNC.
 
-## My own EtherCat 4. My PCB and details
+## My own EtherCat device 4. The PCB is here
 
 In this video it starts to be interesting. I have got the pcb and I try to make it work.
 Now I finally make documentation available, see [this folder](Pcb-1-lan9252).
 
-[![Watch the video](https://img.youtube.com/vi/nTQUwghvy5Q/default.jpg)](https://youtu.be/nTQUwghvy5Q)
+[![Watch the video](https://img.youtube.com/vi/An0VrKYAv88/default.jpg)](https://youtu.be/An0VrKYAv88)
 
 ## Make my own EtherCAT device 3. Encoder