Attribute 'mathvariant="double-struck"' has no effect

[RyanHanekamp]

mathml-to-latex version 1.2.0 `

${\mathbb{R}}^n$

`

This is converted to 'R^{n}'

It should be converted to '\mathbb{R}^{n}' or something similar.

https://developer.mozilla.org/en-US/docs/Web/MathML/Global_attributes/mathvariant

Thanks,

-Ryan

[asnunes]

Implemented in #17 Thanks for the report