How to insert the following diagram in a MathStackExchange post ?

\begin{tikzcd}[column sep=2cm, row sep=1.8cm]

& S \arrow[d,"j_{S}"]\arrow[ddr,"\varphi_S"] \ T\arrow[r,"j_T"] \arrow[rrd,"\varphi_T",swap]

& S\rtimes T \arrow[rd,"\exists \varPhi",thick,dotted] \

& & R \end{tikzcd}

Thanks !