Docs: Update zh/materials/Material.html

```diff
- Defines whether vertex coloring is used. Default is *false*.
+ 是否使用顶点着色。默认值为false。
```

docs/api/zh/materials/Material.html

@@ -254,7 +254,7 @@ This starts at *0* and counts how many times [property:Boolean needsUpdate] is s
 
 <h3>[property:Boolean vertexColors]</h3>
 <p>
-Defines whether vertex coloring is used. Default is *false*.
+是否使用顶点着色。默认值为false。
 </p>
 
 <h3>[property:Boolean visible]</h3>