I am using tikz and the following code to make a commutative diagram.
\documentclass{article}
\usepackage{tikz-cd, mathtools}
\usetikzlibrary{calc}
\usetikzlibrary{arrows}
\begin{document}
\begin{equation*}
\begin{tikzcd}
V^{1*} \arrow{r}{\Pi_1(T)} \arrow[dashed, swap]{dr}{g} & V^{2} \\
& U \arrow[dashed, swap]{u}{h}
\end{tikzcd} \hspace{10mm} \text{dim}(U) = r
\end{equation*}
\end{document}
I am trying to place a circular arrow in the diagram to indicate that it is commutative. Any help would be greatly appreciated!