diff --git a/content/posts/hybrid-post.mdx b/content/posts/hybrid-post.mdx
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@@ -11,7 +11,7 @@ author: James Liu
 coverImage: /images/fourier-cover.jpg
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-# Fourier Analysis: From Mathematical Theory to Python Practice
+## Fourier Analysis: From Mathematical Theory to Python Practice
 
 Fourier analysis is one of the most beautiful and practical ideas in all of mathematics. It tells us that *any* sufficiently well-behaved periodic function can be expressed as an infinite sum of simple sines and cosines. This seemingly abstract claim has profound implications — from solving partial differential equations and compressing audio files to reconstructing medical images in MRI machines.