math/tex-delimiter
A Markdown paragraph has \(…\), \[…\] or a bare \begin{…}, which Markdown doesn’t read as math: there \( and \[ are escaped brackets, as on GitHub and in Pandoc. The paragraph is shown as written.
Example
The area is \(\pi r^2\).
Fix
Write inline math as $…$ and display math as $$…$$, with any environment inside the $$.