add width_min, width_max to column_spec
diff --git a/docs/index.html b/docs/index.html
index c5547ad..5435902 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -82,7 +82,7 @@
<ul>
<li>
<a href="awesome_table_in_html.html" class="normal-link">for HTML</a> /
- <a href="awesome_table_in_html_cn.html" class="normal-link">中文版</a>
+ <a href="awesome_table_in_html_cn.html" class="normal-link"><span style="border-radius: 2px; padding: 1px; background-color: #d14; font-size: 8px; color: #fff">中</span></a>
</li>
<li>
<a href="awesome_table_in_pdf.pdf" class="normal-link">for LaTeX</a>