Using mhchem extension

[erning]

To write nice chemical equations easily, we can use mhchem extension. Please see the following example.

markup

$\ce{2HCl + Na2CO3 = H2O + CO2 ^ + 2NaCl}$

rendered

According to KaTex's documentation, I just added require('katex/dist/contrib/mhchem.js') to this plugin and it works perfectly. Is it possible to formally add the mhchem support? It might be an option in the plugin settings. What is your opinion?

[craftzdog]

Looks nice.
I guess it should be optional as it isn't part of core katex.