Update README.md

README.md

@@ -267,7 +267,7 @@ PaddleSpeech Text-to-Speech mainly contains three modules: *Text Frontend*, *Aco
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    <tr>
-      <td rowspan="2">Vocoder</td>
+      <td rowspan="3">Vocoder</td>
       <td >WaveFlow</td>
       <td >LJSpeech</td>
       <td>