add qasm3 readme

# QASM3 Integration

The goal here is to show that this is an integration platform, and 

we want to be able to promote a number of mechanisms for programmability. 

We do this through state-of-the-art compiler frameworks like MLIR. 

![mlir](mlir_fig.png)

# Goals

* Show QPE example from qcor to note how one can do this at various language levels

* Show the QASM3 example, walk through it, and compile and run

* Show the lowering to MLIR, then to LLVM IR

* Note that this could be an efficient means for large scale circuit sim

* Demo that

 No newline at end of file

include "stdgates.inc";

const n_qubits = 50;

const n_layers = 12;

const n_layers = 4;

qubit q[n_qubits];

// Run by: mpiexec -n <N> ./a.out -qrt nisq -qpu tnqvm -qpu-config tnqvm.ini 

        cx q[j], q[j+1];

    }

}

// 4 Ranks

// 4 Ranks, 12 layers

// real    8m44.685s

// user    68m45.740s

// sys     0m14.613s