Discrete $\ell^{1}$ Double Bubble solution is at most ceiling +2 of the continuous solution

In this paper we show that the solution of the discrete Double Bubble problem over $\mathbb{Z}^2$ is at most the ceiling function plus two of the continuous solution to the Double Bubble problem, with respect to the $\ell^1$ norm, found in \cite{morgan1998wulff} and \cite{duncan2020elementary}.