chore: Skip processing of Medium post titles

Author: andrewginns

src/pages/writing.astro

@@ -190,6 +190,7 @@ if (mediumArticles.length > 0) {
   .post-preview h2 {
     font-size: 1.5rem;
     margin-bottom: 0.5rem;
+    text-transform: none;
   }
 
   .post-preview h2 a {