[O] how to render align environment with mathjax in html-expot

[Max Linke]

Hello

I would like to use align environments when I export to html. As this is 
nicer for me to align equations.

When I use them naked like this.

        \begin{align}
                a &= b + c \\
                x &= y + z
        \end{align}

the equation does not get rendered at all but the naked text is 
displayed in the html file. Do their exists some options to tell 
org-mode to wrap align environments for mathjax? Or do I have to wrap 
this in some special source block?


best Max