Update instructions.txt

.github/workflows/instructions.txt

@@ -2,7 +2,7 @@ If you are facing blank screen after installation, try [booting using refind](ht
 
 Follow [this guide](https://wiki.t2linux.org/guides/wifi-bluetooth/) for Wi-Fi and Bluetooth to work.
 
-**Getting kernel updates :** Post installation, users are recommended to set up the [kernel update script](https://github.com/t2linux/T2-Ubuntu-Kernel#installation) to receive kernel updates.
+**Getting kernel updates :** Post installation, users are recommended to set up the [apt repo](https://github.com/t2linux/T2-Ubuntu-Kernel#installation) to receive kernel updates.
 
 **Touch Bar :** If your Mac has a Touch Bar, install `tiny-dfr` from [t2-ubuntu-repo](https://github.com/AdityaGarg8/t2-ubuntu-repo.git).