Fixed broken latex in _posts/2015-10-20-math.md (alshedivat#2219)

Latex math is currently broken in [_posts/2015-10-20-math.md](https://alshedivat.github.io/al-folio/blog/2015/math/) . Fixed it by replacing starts with underscore --------- Co-authored-by: George <[email protected]>
cjang2 · Feb 22, 2024 · b607e58 · b607e58
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diff --git a/.prettierignore b/.prettierignore
@@ -3,3 +3,4 @@
 assets/css/main.scss
 assets/plotly/demo.html
 lighthouse_results/**
+_posts/2015-10-20-math.md
diff --git a/_posts/2015-10-20-math.md b/_posts/2015-10-20-math.md
@@ -21,7 +21,7 @@ MathJax will automatically number equations:
 
 \begin{equation}
 \label{eq:cauchy-schwarz}
-\left( \sum*{k=1}^n a_k b_k \right)^2 \leq \left( \sum*{k=1}^n a*k^2 \right) \left( \sum*{k=1}^n b_k^2 \right)
+\left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2 \right) \left( \sum_{k=1}^n b_k^2 \right)
 \end{equation}
 
 and by adding `\label{...}` inside the equation environment, we can now refer to the equation using `\eqref`.