Update README.md

Changed the description to point out only QEMU is supported.

README.md

@@ -1,6 +1,6 @@
 # UTM Snapshot Manager
 
-This is a companion app for the popular MacOS virtual machine host [UTM](https://github.com/utmapp/UTM) to manage snapshots for existing virtual machines. UTM itself doesn't give access to that functionality so far; however the QEMU hypervisor, on which UTM is based, offers [snapshot management](https://kashyapc.fedorapeople.org/virt/lc-2012/snapshots-handout.html). This project is more intended as proof-of-concept for that functionality and less as a releasable product – especially it doesn't support taking live snapshots and doesn't come with a precompiled release binary (since I don't have a paid Apple Developer subscription to create an app package signed for distribution). However it should be perfectly possible to just download and compile it out of the box.
+This is a companion app for the popular MacOS virtual machine host [UTM](https://github.com/utmapp/UTM) to manage snapshots for existing virtual machines. UTM itself doesn't give access to that functionality so far; however the QEMU hypervisor which UTM leverages per default, offers [snapshot management](https://kashyapc.fedorapeople.org/virt/lc-2012/snapshots-handout.html). This project is intended as proof-of-concept for that functionality and not as a releasable product – especially it doesn't support taking live snapshots, supports only the default QEMU hypervisor and doesn't come with a precompiled release binary (since I don't have a paid Apple Developer subscription to create an app package signed for distribution). However it should be perfectly possible to just download and compile it out of the box.
 
 ![UTM Snapshot Manager - Screenshot of the main window with navigation pane on the left and details view with VMs on the right](https://github.com/Metamogul/UTM-Snapshot-Manager/blob/main/Screenshot.png)