[DOCS] Updated instructions to use virt-manager

* Added instructions for adding installation disk in virt-manager
* Added OVMF config instructions

README.md

@@ -39,7 +39,8 @@ and add it to the end of `basic.sh`:
 Then run `basic.sh` to start the machine and install macOS. Remember to partition in Disk Utility first!
 
 ## Step 2a (Virtual Machine Manager)
-If instead of QEMU, you'd like to import the setup into Virt-Manager for further configuration, just run `sudo ./make.sh --add`.
+1. If instead of QEMU, you'd like to import the setup into Virt-Manager for further configuration, just run `sudo ./make.sh --add`.
+2. After running the above command, add `MyDisk.qcow2` as storage in the properties of the newly added entry for VM.
 
 ## Step 2b (Headless Systems)
 If you're using a cloud-based/headless system, you can use `headless.sh` to set up a quick VNC instance. Settings are defined through variables as seen in the following example. VNC will start on port `5900` by default.

docs/guide-screen-resolution.md

@@ -17,3 +17,9 @@ _(Thanks to [passthroughpo.st](https://passthroughpo.st/new-and-improved-mac-os-
 
  - Edit that to your preferred screen resolution.
  - Some odd/intermediate resolutions like 1366×768 may not work well. Try to stick to more common 16:9, 16:10, and 4:3 form factors.
+
+2. Shut down the VM, relaunch it using `basic.sh` script and follow the following steps:
+ - Press `Escape` key as soon as the window comes up.
+ - In the interface that comes up, select `Device Manager`->`OVMF Platform Configuration`->`Change Preferred` and select the correct resolution.
+ - Press `F10` to save the changes.
+ - Press `Escape` multiple times to come back to main menu, and then select `Continue` on it.