docs/virtio-fs: Update --memory option parameters
Use updated --memory option parameters. The field `size` needs
M/G suffix. Without the suffix cloud-hypervisor panics at
src/main.rs:353
Also the use of backing file is deprecated so use `shared` field
@@ -56,7 +56,7 @@ Assuming you have `focal-server-cloudimg-amd64.raw` and `custom-vmlinux.bin` on
```bash
./cloud-hypervisor \
--cpus 4 \
- --memory "size=512,file=/dev/shm" \
+ --memory "size=512M,shared=on" \
--disk path=focal-server-cloudimg-amd64.raw \
--kernel custom-vmlinux.bin \
--cmdline "console=ttyS0 console=hvc0 root=/dev/vda1 rw" \
