Fix UTF-8 corruption in title. Need longer-term fix

Author: Ovid

blog/a-geodetic-refutation-of-flat-earth-theory.html

@@ -25,7 +25,7 @@
   <meta property="og:url" content="https://curtispoe.org/blog/a-geodetic-refutation-of-flat-earth-theory.html" />
 
   <meta property="og:title" content="A Geodetic Refutation of Flat-Earth Theory" />
-  <meta property="og:description" content="A Formal Refutation of “Flat‑Earth” Claims through the Lens of Negative‑Curvature Geodesy" />
+  <meta property="og:description" content="A Formal Refutation of &quot;Flat Earth&quot; Claims through the Lens of Negative-Curvature Geodesy" />
 
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   <link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">