diff --git a/README.html b/README.html
index fa0643b..742421f 100644
--- a/README.html
+++ b/README.html
@@ -264,6 +264,7 @@
     \end{align}</script>
     </div>
     <p>行内公式: <span class="arithmatex"><span class="MathJax_Preview">p(x|y) = \frac{p(y|x)p(x)}{p(y)}</span><script type="math/tex">p(x|y) = \frac{p(y|x)p(x)}{p(y)}</script></span> </p>
+    <p><code>$Cu_{2}(OH)_{2}CO_{3}$</code></p>
     <h3 id="4.2.6">4.2.6 HTML</h3>
     <div class="highlight"><pre><span></span><code><span class="p">&lt;</span><span class="nt">head</span><span class="p">&gt;</span>
         <span class="cm">&lt;!--头部--&gt;</span>
diff --git a/README.md b/README.md
index a9c4fb5..fcab461 100644
--- a/README.md
+++ b/README.md
@@ -187,7 +187,7 @@ $$
     p(h_j=1|\mathbf{v}) & = \sigma\left(\sum_i w_{ij}v_i + c_j\right)
 \end{align}
 
-行内公式: $p(x|y) = \frac{p(y|x)p(x)}{p(y)}$ 
+行内公式: $p(x|y) = \frac{p(y|x)p(x)}{p(y)}$
 
 4.2.6 HTML