adding android x86 to grub-how?

I installed windows 10 and MX Linux in a dual boot and would like to add android x86 to the grub menu after installation but I have no idea what I should write in the grub40_custom file. I installed android-x86_64-9.0-r2.
My specs:
4GB RAM
Intel Pentium silver N5000
UHD graphics 605
1366x768
1TB HDD

I hope any one can help.