vboxmanage-modifyvm: add page (#17581)

Co-authored-by: Managor <42655600+Managor@users.noreply.github.com>

pages/common/vboxmanage-modifyvm.md

@@ -0,0 +1,20 @@
+# VBoxManage modifyvm
+
+> Change settings for a virtual machine that is stopped.
+> More information: <https://www.virtualbox.org/manual/ch08.html#vboxmanage-modifyvm>.
+
+- Rename the VM:
+
+`VBoxManage modifyvm {{uuid|vm_name}} --name {{new_name}}`
+
+- Adjust memory and CPU:
+
+`VBoxManage modifyvm {{uuid|vm_name}} --memory {{2048}} --cpus {{2}}`
+
+- Enable Remote Display (VRDE):
+
+`VBoxManage modifyvm {{uuid|vm_name}} --vrde on`
+
+- Enable session recording:
+
+`VBoxManage modifyvm {{uuid|vm_name}} --recording on`