start demo with our loader

.github/workflows/x86_64.yml

-name: Build x86_64
+name: Test x86_64
 
 on:
   push:
@@ -76,3 +76,6 @@ jobs:
           echo "LLVM Objcopy - $LLVM_OBJCOPY"
           Invoke-Expression "$LLVM_OBJCOPY --strip-debug -O elf32-i386 target/x86_64-unknown-hermit-loader/debug/rusty-loader"
       if: ${{ matrix.os == 'windows-latest' }}
+    - name: Test loader
+      run:
+        qemu-system-x86_64 -display none -smp 1 -m 64M -serial stdio -kernel target/x86_64-unknown-hermit-loader/debug/rusty-loader -initrd data/hello_world -cpu qemu64,apic,fsgsbase,rdtscp,xsave,fxsr,rdrand