Apply suggested fix to math/grade4/decimals-th.html from Copilot Autofix

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Author: ajm19826

math/grade4/decimals-th.html

@@ -88,7 +88,7 @@ <h1>Crossing the Point</h1>
 
     <div id="p1" class="content-card">
       <h1>The Tenths Place</h1>
-      <p>If you divide a whole into **10 equal parts**, each part is a tenth.</p>
+      <p>If you divide a whole into <strong>10 equal parts</strong>, each part is a tenth.</p>
       <ul>
           <li><strong>Fraction:</strong> $\frac{1}{10}$</li>
           <li><strong>Decimal:</strong> $0.1$</li>