[Feature] Support Markdown Formula

[jollyxenon]

We need marked-katex-extension to support Markdown formulas like $$ FORMULA $$ or $ FORMULA $

[jollyxenon]

Some developers need to deal with mathematical formulas frequently (I am one of them). Considering that the module added a few days ago is Markdown support, I think it is reasonable to add the adaptation of mathematical formulas on this basis. In order to ensure lightweight, I think adding KaTeX support is a good choice.

[shantur]

@jollyxenon - Thanks for the feature request and using CodeNomad.

Can you give me a sample prompt that would help me test it, I can surely add this

[jollyxenon]

I use this prompt to test it:
Please output the Binomial Theorem Formula with Markdown. Don't output anything else.

And the dialogue column outputs:

, which are expected to be
$(x + y)^n = \sum_{k=0}^{n} \binom{n}{k} x^{n-k} y^k$

What's more, I would like to work on this. ☺️

[jollyxenon]

I have accomplished this feature. Please review my PR. Hope my effort can be of help.😽