Language-agnostic

[RRiva]

Hi, thanks a lot for creating this great package! I was wondering if it's possible, and within its scope, to make it language-agnostic.

The reason is that I have some large code bases in python and Fortran, and converting them in Julia is just not on the table. But on the other hand, improving their documentation is always a goal, and Literate.jl would do an amazing job.

For python I can imagine that it would not be too difficult, while for Fortran you should replace the default comment character with ^ *[!cC*dD].