README.md: Fix glob in download instructions

Author: sharpenedblade

README.md

@@ -1,7 +1,7 @@
 # t2linux-fedora-iso
 A installation ISO for Fedora on T2 macs. It uses the kernel patches from the [t2linux](https://t2linux.org) project. Read the [kernel README](https://github.com/t2linux/fedora-kernel/) for more information. Make sure to download the `.iso` or `.iso.0x` file.
 
-Combine the split ISOs with `cat name_of_iso_here.iso.* > full.iso`.
+Combine the split ISOs with `cat name_of_iso_here.iso.0* > full.iso`.
 
 ## Disclaimer
 This project is not officially provided or supported by the Fedora Project. The official Fedora software is available at [https://fedoraproject.org/](https://fedoraproject.org/). This project is not related to Fedora in any way.