Markdown not getting rendered in blog

Hello @hamelsmu
The markdown content when I write within $$ for subscript or superscript in equations is not getting rendered. It was getting rendered previously, like 2 months ago. But then when I tried to make some changes the jekyll build failed. So I forked again from the main repo and re-created my blog 10 days ago.
And since then, I am facing this issue of text in $$. Let me know if you can do something about it.

Thank you.

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